California ADU Permits and Completions by City (2018–2025)
By Kaden Coziar, editor, The Dwelling Index · Updated September 2026
California cities and counties reported permits for 32,363 accessory dwelling units (ADUs) in 2025 and reported 22,699 finished. In 62 of 293 places with at least 50 homes permitted, ADUs were more than half under both counting methods, according to The Dwelling Index's analysis of state housing data (September 2026).
Statewide, ADUs were more than 1 in 4 homes permitted in 2025. Below: California ADU permits by city for every city and county area represented in the state's file, back to 2018, plus city completions for 2024–2025 and statewide completions for 2018–2025 — and why a quick sum of the 2025 file comes out 9,488 ADUs higher than what was permitted in 2025.
An ADU is a small extra home on the same lot as a house or apartment building: a backyard cottage, a converted garage, or a separate unit built into the home (HCD ADU Handbook).
Key California ADU permit statistics
- California cities and counties issued permits for 32,363 ADUs in 2025, up 4.1% from 31,081 in 2024 (HCD Annual Progress Report data; The Dwelling Index analysis, Sept. 2026).
- ADUs were 26.2% of all homes permitted in California in 2025 — 32,363 of 123,726, or more than 1 in 4 (HCD data; The Dwelling Index analysis, Sept. 2026).
- In 62 of the 293 California cities and counties that permitted at least 50 homes in 2025, ADUs were more than half of the permitted units under both counting methods (The Dwelling Index analysis of HCD data, Sept. 2026).
- California cities and counties reported 22,699 ADUs finished in 2025, up 9.4% from 20,740 in 2024 — 20.2% of the 112,286 homes finished that year (HCD data; The Dwelling Index analysis, Sept. 2026).
- The City of Los Angeles issued permits for 7,451 ADUs in 2025, 23% of California's total; the 10 cities with the most issued 12,948, or 40% (HCD data; The Dwelling Index analysis, Sept. 2026).
- ADUs went from 7.8% of homes permitted in California in 2018 (8,912 of 114,664) to 26.2% in 2025, and yearly ADU permits were 3.6 times as high (HCD data; The Dwelling Index analysis, Sept. 2026).
- From 2018 through 2025, California cities and counties permitted 172,376 ADUs and reported 102,260 finished (HCD data; The Dwelling Index analysis, Sept. 2026).
- California's ADU permits grew 4.1% in 2025, the smallest yearly gain since 2020 (HCD data; The Dwelling Index analysis, Sept. 2026).
- From 2022 to 2025, California ADU permits rose 27.0% (25,492 to 32,363) while permits for all other homes fell 21.7% (116,648 to 91,363) (HCD data; The Dwelling Index analysis, Sept. 2026).
- In Inglewood, 147 of the 149 homes permitted in 2025 were ADUs (98.7%); in Irvine, 8 of 1,409 were (0.6%) (HCD data; The Dwelling Index analysis, Sept. 2026).
- San Francisco issued permits for 171 ADUs in 2025, down 65% from 483 in 2019 (HCD data; The Dwelling Index analysis, Sept. 2026).
- Adding up the ADU permit column in the state's 2025 file gives 41,851 — 9,488 more than were permitted in 2025, because some reports also list permits dated in other years or with no issue date (The Dwelling Index analysis of HCD data, Sept. 2026).
On this page: City table · Year by year · Share of new homes · Finished ADUs · Is it slowing? · Counties · Why raw sums run high · How we built this · Download · FAQ
How many ADUs did each California city permit in 2025?
Search all 534 California jurisdictions. A blank value means there were no Table A2 rows for that place and year; it is not zero.
534 of 534 jurisdictions
Counts include permits and completions dated in the report year.
| Copy | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | City | Los Angeles | 7,451 | 7,058 | +393 | 5,113 | 5,883 | 18,071 | 41.2% | ||||
| 2 | City | San Diego | 2,165 | 2,282 | -117 | 848 | 229 | 7,942 | 27.3% | — | |||
| 3 | Unincorporated county area | Los Angeles | 1,361 | 1,044 | +317 | 767 | 811 | 3,235 | 42.1% | — | |||
| 4 | City | Los Angeles | 644 | 747 | -103 | 499 | 649 | 1,218 | 52.9% | — | |||
| 5 | City | Santa Clara | 502 | 558 | -56 | 365 | 360 | 2,629 | 19.1% | — | |||
| 6 | City | Santa Barbara | 479 | 435 | +44 | 239 | 327 | 930 | 51.5% | — | |||
| 7 | City | Orange | 434 | 426 | +8 | 266 | 359 | 637 | 68.1% | — | |||
| 8 | Unincorporated county area | San Diego | 403 | 489 | -86 | 369 | 407 | 932 | 43.2% | — | |||
| 9 | City | Sacramento | 378 | 348 | +30 | 288 | 262 | 2,737 | 13.8% | — | |||
| 10 | City | Los Angeles | 371 | 229 | +142 | 251 | 289 | 386 | 96.1% | ||||
| 11 | City | Orange | 266 | 277 | -11 | 222 | 226 | 452 | 58.8% | ||||
| 12 | City | Orange | 258 | 193 | +65 | 157 | 172 | 316 | 81.6% | — | |||
| 13 | City | Ventura | 244 | 216 | +28 | 130 | 174 | 245 | 99.6% | ||||
| 14 | City | Los Angeles | 241 | 411 | -170 | 70 | 72 | 284 | 84.9% | — | |||
| 15 | City | San Bernardino | 240 | 179 | +61 | 78 | 123 | 876 | 27.4% | ||||
| 16 | City | San Bernardino | 230 | 138 | +92 | 44 | 143 | 402 | 57.2% | ||||
| 17 | Unincorporated county area | Riverside | 227 | 9 | +218 | 46 | 31 | 1,956 | 11.6% | — | |||
| 17 | Unincorporated county area | Santa Barbara | 227 | 219 | +8 | 9 | 168 | 613 | 37.0% | — | |||
| 19 | City | San Diego | 223 | 246 | -23 | 99 | 202 | 717 | 31.1% | — | |||
| 20 | City | Los Angeles | 222 | 208 | +14 | 73 | 121 | 698 | 31.8% | — | |||
| 21 | City | Orange | 215 | 232 | -17 | 188 | 193 | 260 | 82.7% | — | |||
| 22 | City | Los Angeles | 209 | 320 | -111 | 172 | 270 | 463 | 45.1% | — | |||
| 23 | City | Riverside | 208 | 309 | -101 | 214 | 240 | 415 | 50.1% | — | |||
| 23 | City | Monterey | 208 | 216 | -8 | 115 | 140 | 221 | 94.1% | — | |||
| 25 | City | Alameda | 192 | 213 | -21 | 253 | 183 | 712 | 27.0% | — | |||
| 26 | City | Alameda | 188 | 133 | +55 | 102 | 142 | 560 | 33.6% | — | |||
| 27 | City and county | San Francisco | 171 | 231 | -60 | 336 | 218 | 1,959 | 8.7% | — | |||
| 28 | City | Orange | 168 | 110 | +58 | 65 | 40 | 616 | 27.3% | ||||
| 29 | City | San Bernardino | 154 | 163 | -9 | 98 | 128 | 1,930 | 8.0% | — | |||
| 29 | City | Los Angeles | 154 | 62 | +92 | 177 | 163 | 158 | 97.5% | ||||
| 31 | City | Los Angeles | 147 | 18 | +129 | 0 | 22 | 149 | 98.7% | ||||
| 32 | City | Los Angeles | 146 | 202 | -56 | 159 | 141 | 202 | 72.3% | ||||
| 33 | City | Los Angeles | 143 | 130 | +13 | 137 | 6 | 450 | 31.8% | — | |||
| 34 | City | Santa Barbara | 141 | 110 | +31 | 113 | 100 | 255 | 55.3% | — | |||
| 35 | City | Santa Clara | 140 | 62 | +78 | 63 | 70 | 531 | 26.4% | — | |||
| 36 | Unincorporated county area | Kern | 139 | 75 | +64 | 40 | 76 | 493 | 28.2% | — | |||
| 37 | City | Santa Clara | 136 | 128 | +8 | 105 | 138 | 174 | 78.2% | — | |||
| 37 | City | Los Angeles | 136 | 94 | +42 | 80 | 90 | 178 | 76.4% | — | |||
| 37 | City | Ventura | 136 | 78 | +58 | 54 | 90 | 431 | 31.6% | — | |||
| 40 | City | Riverside | 129 | 92 | +37 | 20 | 71 | 163 | 79.1% | ||||
| 41 | Unincorporated county area | Contra Costa | 124 | 108 | +16 | 78 | 82 | 286 | 43.4% | ||||
| 42 | City | Ventura | 122 | 93 | +29 | 93 | 103 | 213 | 57.3% | — | |||
| 43 | City | Los Angeles | 119 | 102 | +17 | 34 | 90 | 137 | 86.9% | — | |||
| 43 | City | Los Angeles | 119 | 81 | +38 | 0 | 31 | 123 | 96.7% | — | |||
| 43 | City | Santa Clara | 119 | 74 | +45 | 0 | 0 | 214 | 55.6% | ||||
| 46 | City | Alameda | 117 | 102 | +15 | 91 | 92 | 463 | 25.3% | — | |||
| 46 | City | San Diego | 117 | 109 | +8 | 69 | 70 | 514 | 22.8% | — | |||
| 48 | Unincorporated county area | Sonoma | 110 | 136 | -26 | 94 | 102 | 305 | 36.1% | — | |||
| 49 | City | Stanislaus | 109 | 112 | -3 | 79 | 113 | 447 | 24.4% | ||||
| 50 | City | Santa Clara | 107 | 73 | +34 | 74 | 72 | 216 | 49.5% | — | |||
| 51 | City | Los Angeles | 106 | 86 | +20 | 23 | 71 | 218 | 48.6% | — | |||
| 52 | Unincorporated county area | Stanislaus | 103 | 74 | +29 | 38 | 60 | 188 | 54.8% | — | |||
| 53 | City | Los Angeles | 102 | 115 | -13 | 157 | 74 | 137 | 74.5% | — | |||
| 54 | City | Fresno | 101 | 87 | +14 | 16 | 41 | 2,014 | 5.0% | — | |||
| 54 | Unincorporated county area | Orange | 101 | 62 | +39 | 72 | 56 | 393 | 25.7% | — | |||
| 56 | City | San Diego | 100 | 131 | -31 | 61 | 100 | 189 | 52.9% | — | |||
| 57 | City | Los Angeles | 99 | 116 | -17 | 78 | 112 | 122 | 81.1% | ||||
| 58 | City | Los Angeles | 98 | 79 | +19 | 46 | 76 | 155 | 63.2% | — | |||
| 58 | Unincorporated county area | Ventura | 98 | 74 | +24 | 63 | 56 | 152 | 64.5% | — | |||
| 60 | City | Ventura | 97 | 74 | +23 | 12 | 57 | 340 | 28.5% | — | |||
| 61 | City | Los Angeles | 96 | 78 | +18 | 46 | 30 | 136 | 70.6% | — | |||
| 62 | Unincorporated county area | Alameda | 94 | 121 | -27 | 37 | 74 | 107 | 87.9% | ||||
| 62 | City | San Mateo | 94 | 66 | +28 | 41 | 68 | 291 | 32.3% | ||||
| 64 | Unincorporated county area | El Dorado | 92 | 73 | +19 | 65 | 61 | 493 | 18.7% | — | |||
| 64 | Unincorporated county area | Placer | 92 | 143 | -51 | 127 | 75 | 552 | 16.7% | — | |||
| 66 | Unincorporated county area | San Bernardino | 91 | 116 | -25 | 0 | 62 | 440 | 20.7% | — | |||
| 66 | City | San Luis Obispo | 91 | 67 | +24 | 54 | 73 | 198 | 46.0% | — | |||
| 68 | City | Riverside | 90 | 86 | +4 | 59 | 37 | 370 | 24.3% | — | |||
| 69 | City | Orange | 89 | 92 | -3 | 66 | 73 | 232 | 38.4% | — | |||
| 69 | City | Santa Clara | 89 | 62 | +27 | 64 | 71 | 247 | 36.0% | — | |||
| 69 | Unincorporated county area | San Luis Obispo | 89 | 95 | -6 | 74 | 65 | 204 | 43.6% | — | |||
| 69 | City | Los Angeles | 89 | 123 | -34 | 107 | 97 | 108 | 82.4% | ||||
| 73 | City | Orange | 88 | 104 | -16 | 74 | 64 | 171 | 51.5% | — | |||
| 74 | City | Orange | 87 | 132 | -45 | 0 | 0 | 144 | 60.4% | ||||
| 75 | City | San Diego | 86 | 75 | +11 | 57 | 63 | 210 | 41.0% | — | |||
| 75 | City | Santa Clara | 86 | 57 | +29 | 49 | 50 | 388 | 22.2% | — | |||
| 75 | Unincorporated county area | Sacramento | 86 | 185 | -99 | 72 | 41 | 1,176 | 7.3% | — | |||
| 75 | City | Los Angeles | 86 | 97 | -11 | 89 | 65 | 91 | 94.5% | — | |||
| 79 | City | San Diego | 85 | 131 | -46 | 96 | 91 | 187 | 45.5% | — | |||
| 79 | Unincorporated county area | Marin | 85 | 48 | +37 | 32 | 44 | 122 | 69.7% | ||||
| 81 | City | Riverside | 84 | 53 | +31 | 35 | 14 | 224 | 37.5% | — | |||
| 82 | City | Los Angeles | 83 | 80 | +3 | 78 | 71 | 89 | 93.3% | — | |||
| 83 | City | Alameda | 81 | 12 | +69 | 7 | 25 | 575 | 14.1% | — | |||
| 83 | City | San Diego | 81 | 113 | -32 | 73 | 68 | 254 | 31.9% | — | |||
| 83 | City | San Diego | 81 | 115 | -34 | 105 | 76 | 892 | 9.1% | — | |||
| 83 | City | San Bernardino | 81 | 70 | +11 | 62 | 67 | 611 | 13.3% | — | |||
| 87 | City | Riverside | 80 | 80 | 0 | 15 | 13 | 358 | 22.3% | — | |||
| 88 | Unincorporated county area | Santa Clara | 79 | 56 | +23 | 53 | 62 | 121 | 65.3% | — | |||
| 88 | City | Santa Cruz | 79 | 106 | -27 | 87 | 83 | 424 | 18.6% | — | |||
| 90 | City | San Diego | 77 | 57 | +20 | 67 | 77 | 343 | 22.4% | — | |||
| 91 | City | Los Angeles | 76 | 65 | +11 | 32 | 53 | 104 | 73.1% | — | |||
| 92 | City | Los Angeles | 74 | 40 | +34 | 34 | 27 | 85 | 87.1% | ||||
| 93 | City | Napa | 73 | 59 | +14 | 0 | 59 | 164 | 44.5% | — | |||
| 94 | City | Imperial | 71 | 71 | 0 | 22 | 47 | 97 | 73.2% | ||||
| 94 | City | Contra Costa | 71 | 55 | +16 | 47 | 35 | 148 | 48.0% | ||||
| 96 | City | Los Angeles | 69 | 176 | -107 | 130 | 71 | 104 | 66.3% | ||||
| 97 | City | Los Angeles | 68 | 58 | +10 | 43 | 46 | 185 | 36.8% | — | |||
| 98 | City | Riverside | 66 | 14 | +52 | 3 | 37 | 295 | 22.4% | — | |||
| 98 | City | Orange | 66 | 97 | -31 | 62 | 50 | 81 | 81.5% | — | |||
| 100 | City | Kern | 65 | 86 | -21 | 32 | 64 | 2,125 | 3.1% | — | |||
| 100 | City | Orange | 65 | 95 | -30 | 69 | 59 | 339 | 19.2% | — | |||
| 100 | City | San Bernardino | 65 | 60 | +5 | 48 | 53 | 88 | 73.9% | — | |||
| 103 | City | Contra Costa | 64 | 77 | -13 | 44 | 51 | 253 | 25.3% | — | |||
| 104 | City | San Mateo | 63 | 57 | +6 | 39 | 33 | 102 | 61.8% | ||||
| 104 | City | San Mateo | 63 | 49 | +14 | 0 | 43 | 489 | 12.9% | — | |||
| 104 | City | San Joaquin | 63 | 52 | +11 | 10 | 10 | 716 | 8.8% | — | |||
| 107 | City | Los Angeles | 61 | 64 | -3 | 57 | 10 | 411 | 14.8% | ||||
| 107 | Unincorporated county area | Monterey | 61 | 54 | +7 | 38 | 54 | 269 | 22.7% | — | |||
| 109 | City | Santa Clara | 59 | 44 | +15 | 48 | 48 | 111 | 53.2% | — | |||
| 109 | City | San Bernardino | 59 | 24 | +35 | 17 | 37 | 354 | 16.7% | — | |||
| 111 | City | Orange | 58 | 29 | +29 | 58 | 93 | 58 | 100.0% | ||||
| 111 | City | Riverside | 58 | 14 | +44 | 14 | 0 | 706 | 8.2% | — | |||
| 111 | City | Alameda | 58 | 31 | +27 | 45 | 61 | 422 | 13.7% | ||||
| 111 | City | Los Angeles | 58 | 68 | -10 | 58 | 56 | 60 | 96.7% | — | |||
| 115 | City | Los Angeles | 57 | 46 | +11 | 7 | 0 | 93 | 61.3% | — | |||
| 115 | City | Santa Barbara | 57 | 44 | +13 | 16 | 0 | 120 | 47.5% | ||||
| 115 | City | Orange | 57 | 54 | +3 | 28 | 57 | 129 | 44.2% | — | |||
| 115 | City | Alameda | 57 | 37 | +20 | 0 | 24 | 316 | 18.0% | ||||
| 119 | City | Alameda | 56 | 54 | +2 | 44 | 41 | 75 | 74.7% | — | |||
| 119 | City | San Mateo | 56 | 50 | +6 | 48 | 41 | 58 | 96.6% | ||||
| 119 | City | San Diego | 56 | 24 | +32 | 16 | 8 | 71 | 78.9% | — | |||
| 122 | City | Santa Clara | 53 | 27 | +26 | 31 | 40 | 72 | 73.6% | ||||
| 122 | City | Los Angeles | 53 | 57 | -4 | 14 | 25 | 62 | 85.5% | ||||
| 124 | City | Alameda | 52 | 58 | -6 | 41 | 40 | 65 | 80.0% | — | |||
| 124 | City | Santa Clara | 52 | 70 | -18 | 44 | 58 | 93 | 55.9% | ||||
| 124 | City | Los Angeles | 52 | 65 | -13 | 19 | 63 | 54 | 96.3% | — | |||
| 127 | City | Imperial | 51 | 45 | +6 | 31 | 38 | 83 | 61.4% | ||||
| 127 | City | Los Angeles | 51 | 72 | -21 | 40 | 8 | 68 | 75.0% | — | |||
| 127 | Unincorporated county area | San Joaquin | 51 | 30 | +21 | 0 | 2 | 460 | 11.1% | — | |||
| 130 | City | Los Angeles | 50 | 61 | -11 | 53 | 37 | 51 | 98.0% | — | |||
| 130 | City | Alameda | 50 | 45 | +5 | 40 | 43 | 52 | 96.2% | — | |||
| 132 | City | Contra Costa | 49 | 45 | +4 | 43 | 34 | 175 | 28.0% | — | |||
| 132 | City | Santa Clara | 49 | 44 | +5 | 26 | 50 | 239 | 20.5% | — | |||
| 132 | City | San Diego | 49 | 32 | +17 | 22 | 39 | 51 | 96.1% | — | |||
| 132 | Unincorporated county area | San Mateo | 49 | 60 | -11 | 45 | 13 | 158 | 31.0% | — | |||
| 136 | City | San Mateo | 48 | 51 | -3 | 49 | 29 | 1,335 | 3.6% | — | |||
| 137 | City | Sonoma | 47 | 90 | -43 | 2 | 131 | 861 | 5.5% | — | |||
| 137 | City | Solano | 47 | 92 | -45 | 2 | 98 | 446 | 10.5% | — | |||
| 139 | City | San Bernardino | 46 | 27 | +19 | 8 | 21 | 117 | 39.3% | — | |||
| 140 | City | San Mateo | 45 | 36 | +9 | 25 | 3 | 60 | 75.0% | — | |||
| 141 | Unincorporated county area | Santa Cruz | 43 | 102 | -59 | 76 | 67 | 55 | 78.2% | — | |||
| 142 | City | San Mateo | 42 | 43 | -1 | 49 | 50 | 66 | 63.6% | — | |||
| 142 | City | Yolo | 42 | 39 | +3 | 26 | 27 | 73 | 57.5% | ||||
| 142 | Unincorporated county area | Fresno | 42 | 4 | +38 | 1 | 24 | 183 | 23.0% | — | |||
| 142 | City | Contra Costa | 42 | 25 | +17 | 23 | 27 | 50 | 84.0% | ||||
| 142 | City | San Bernardino | 42 | 57 | -15 | 16 | 48 | 114 | 36.8% | — | |||
| 142 | City | Alameda | 42 | 34 | +8 | 4 | 30 | 153 | 27.5% | ||||
| 148 | City | Los Angeles | 41 | 22 | +19 | 37 | 15 | 45 | 91.1% | — | |||
| 149 | City | San Bernardino | 40 | 52 | -12 | 35 | 33 | 265 | 15.1% | ||||
| 149 | City | Tulare | 40 | 38 | +2 | 30 | 27 | 702 | 5.7% | — | |||
| 151 | City | Los Angeles | 39 | 21 | +18 | 22 | 11 | 50 | 78.0% | ||||
| 151 | City | Placer | 39 | 20 | +19 | 18 | 37 | 1,434 | 2.7% | — | |||
| 151 | City | San Bernardino | 39 | 38 | +1 | 29 | 28 | 110 | 35.5% | ||||
| 154 | City | Monterey | 38 | 23 | +15 | 19 | 0 | 51 | 74.5% | — | |||
| 154 | City | Riverside | 38 | 45 | -7 | 0 | 22 | 202 | 18.8% | ||||
| 154 | City | San Mateo | 38 | 25 | +13 | 14 | 36 | 392 | 9.7% | — | |||
| 154 | City | Los Angeles | 38 | 52 | -14 | 44 | 21 | 42 | 90.5% | ||||
| 158 | City | Orange | 37 | 36 | +1 | 23 | 33 | 47 | 78.7% | — | |||
| 159 | City | San Diego | 36 | 33 | +3 | 16 | 29 | 88 | 40.9% | — | |||
| 159 | City | San Mateo | 36 | 26 | +10 | 24 | 27 | 82 | 43.9% | — | |||
| 159 | City | Nevada | 36 | 37 | -1 | 35 | 50 | 138 | 26.1% | — | |||
| 159 | City | Los Angeles | 36 | 40 | -4 | 24 | 28 | 36 | 100.0% | ||||
| 159 | City | Los Angeles | 36 | 29 | +7 | 27 | 38 | 254 | 14.2% | — | |||
| 164 | City | Sacramento | 35 | 32 | +3 | 36 | 19 | 180 | 19.4% | — | |||
| 164 | City | Fresno | 35 | 44 | -9 | 38 | 31 | 597 | 5.9% | ||||
| 164 | City | Los Angeles | 35 | 13 | +22 | 0 | 0 | 35 | 100.0% | ||||
| 164 | City | Orange | 35 | 19 | +16 | 13 | 17 | 36 | 97.2% | — | |||
| 164 | City | Orange | 35 | 17 | +18 | 21 | 27 | 65 | 53.8% | — | |||
| 169 | City | Ventura | 34 | 39 | -5 | 12 | 20 | 176 | 19.3% | — | |||
| 169 | City | Los Angeles | 34 | 52 | -18 | 24 | 35 | 155 | 21.9% | — | |||
| 169 | City | Contra Costa | 34 | 0 | +34 | 37 | 30 | 126 | 27.0% | — | |||
| 169 | City | Alameda | 34 | 29 | +5 | 14 | 14 | 139 | 24.5% | — | |||
| 169 | City | Monterey | 34 | 8 | +26 | 24 | 21 | 60 | 56.7% | — | |||
| 169 | City | Orange | 34 | 22 | +12 | 18 | 27 | 37 | 91.9% | — | |||
| 175 | City | Butte | 33 | 46 | -13 | 45 | 32 | 244 | 13.5% | — | |||
| 175 | City | Riverside | 33 | 31 | +2 | 7 | 16 | 394 | 8.4% | ||||
| 177 | City | Santa Barbara | 32 | 57 | -25 | 31 | 30 | 364 | 8.8% | — | |||
| 178 | City | Los Angeles | 31 | 49 | -18 | 30 | 2 | 68 | 45.6% | — | |||
| 178 | City | San Mateo | 31 | 26 | +5 | 31 | 37 | 191 | 16.2% | — | |||
| 178 | City | Santa Clara | 31 | 9 | +22 | 0 | 5 | 329 | 9.4% | — | |||
| 178 | City | Sonoma | 31 | 19 | +12 | 21 | 33 | 230 | 13.5% | — | |||
| 178 | City | Tulare | 31 | 24 | +7 | 15 | 12 | 468 | 6.6% | — | |||
| 183 | City | Los Angeles | 30 | 33 | -3 | 46 | 26 | 38 | 78.9% | — | |||
| 183 | City | Santa Clara | 30 | 35 | -5 | 22 | 26 | 37 | 81.1% | — | |||
| 183 | City | Los Angeles | 30 | 31 | -1 | 27 | 22 | 44 | 68.2% | — | |||
| 183 | City | San Diego | 30 | 44 | -14 | 34 | 32 | 773 | 3.9% | — | |||
| 183 | City | San Diego | 30 | 20 | +10 | 15 | 14 | 37 | 81.1% | — | |||
| 188 | City | San Mateo | 29 | 25 | +4 | 17 | 24 | 66 | 43.9% | — | |||
| 188 | City | Santa Clara | 29 | 40 | -11 | 49 | 20 | 37 | 78.4% | — | |||
| 188 | City | San Diego | 29 | 44 | -15 | 27 | 39 | 32 | 90.6% | — | |||
| 188 | City | Solano | 29 | 30 | -1 | 23 | 33 | 193 | 15.0% | — | |||
| 192 | City | Los Angeles | 28 | 30 | -2 | 41 | 3 | 28 | 100.0% | — | |||
| 192 | City | Orange | 28 | 14 | +14 | 10 | 17 | 89 | 31.5% | — | |||
| 192 | City | Contra Costa | 28 | 13 | +15 | 19 | 13 | 33 | 84.8% | ||||
| 192 | City | Marin | 28 | 34 | -6 | 5 | 30 | 33 | 84.8% | — | |||
| 196 | City | San Bernardino | 27 | 3 | +24 | 5 | 4 | 329 | 8.2% | — | |||
| 196 | City | Tulare | 27 | 28 | -1 | 23 | 7 | 190 | 14.2% | — | |||
| 196 | City | Los Angeles | 27 | 18 | +9 | 44 | 75 | 182 | 14.8% | — | |||
| 196 | City | San Joaquin | 27 | 68 | -41 | 50 | 83 | 87 | 31.0% | — | |||
| 196 | City | Contra Costa | 27 | 41 | -14 | 19 | 37 | 146 | 18.5% | — | |||
| 201 | City | Los Angeles | 26 | 34 | -8 | 28 | 12 | 26 | 100.0% | — | |||
| 201 | City | San Mateo | 26 | 7 | +19 | 6 | 6 | 26 | 100.0% | — | |||
| 201 | City | Ventura | 26 | 15 | +11 | 7 | 11 | 27 | 96.3% | — | |||
| 201 | City | San Luis Obispo | 26 | 20 | +6 | 21 | 19 | 168 | 15.5% | — | |||
| 201 | City | Shasta | 26 | 26 | 0 | 23 | 27 | 201 | 12.9% | — | |||
| 201 | City | Los Angeles | 26 | 14 | +12 | 23 | 11 | 30 | 86.7% | ||||
| 201 | City | Los Angeles | 26 | 49 | -23 | 34 | 17 | 27 | 96.3% | — | |||
| 208 | City | Los Angeles | 25 | 0 | +25 | 15 | 0 | 28 | 89.3% | ||||
| 208 | City | Imperial | 25 | 4 | +21 | 0 | 9 | 66 | 37.9% | — | |||
| 208 | City | Orange | 25 | 11 | +14 | 8 | 8 | 68 | 36.8% | — | |||
| 208 | City | Riverside | 25 | 17 | +8 | 11 | 10 | 248 | 10.1% | — | |||
| 208 | City | Los Angeles | 25 | 23 | +2 | 4 | 9 | 36 | 69.4% | — | |||
| 208 | City | Orange | 25 | 47 | -22 | 19 | 7 | 52 | 48.1% | ||||
| 208 | City | Riverside | 25 | 21 | +4 | 8 | 17 | 757 | 3.3% | — | |||
| 208 | City | Los Angeles | 25 | 33 | -8 | 3 | 22 | 85 | 29.4% | — | |||
| 208 | Unincorporated county area | Shasta | 25 | 37 | -12 | 39 | 25 | 77 | 32.5% | — | |||
| 208 | City | Marin | 25 | 13 | +12 | 11 | 3 | 29 | 86.2% | ||||
| 218 | City | Los Angeles | 24 | 9 | +15 | 4 | 12 | 164 | 14.6% | ||||
| 218 | City | Riverside | 24 | 8 | +16 | 1 | 5 | 315 | 7.6% | — | |||
| 218 | City | Merced | 24 | 16 | +8 | 5 | 10 | 270 | 8.9% | — | |||
| 218 | City | Los Angeles | 24 | 39 | -15 | 25 | 28 | 102 | 23.5% | — | |||
| 218 | City | San Joaquin | 24 | No Table A2 rows | No Table A2 rows | No Table A2 rows | 27 | 600 | 4.0% | ||||
| 218 | City | San Diego | 24 | 25 | -1 | 6 | 22 | 45 | 53.3% | — | |||
| 224 | City | San Bernardino | 23 | 19 | +4 | 9 | 14 | 53 | 43.4% | — | |||
| 224 | City | Los Angeles | 23 | 33 | -10 | 19 | 28 | 23 | 100.0% | — | |||
| 224 | City | Sacramento | 23 | 52 | -29 | 32 | 36 | 486 | 4.7% | — | |||
| 224 | City | San Bernardino | 23 | 13 | +10 | 10 | 22 | 528 | 4.4% | — | |||
| 224 | City | Monterey | 23 | 31 | -8 | 13 | 22 | 77 | 29.9% | ||||
| 224 | City | Ventura | 23 | 17 | +6 | 28 | 20 | 26 | 88.5% | — | |||
| 224 | City | Riverside | 23 | 7 | +16 | 19 | 0 | 484 | 4.8% | — | |||
| 231 | City | Stanislaus | 22 | 7 | +15 | 7 | 9 | 25 | 88.0% | ||||
| 231 | City | Los Angeles | 22 | 56 | -34 | 26 | 20 | 51 | 43.1% | — | |||
| 231 | City | San Mateo | 22 | 29 | -7 | 33 | 17 | 22 | 100.0% | ||||
| 231 | City | Imperial | 22 | 10 | +12 | 4 | 11 | 56 | 39.3% | ||||
| 231 | City | Los Angeles | 22 | 17 | +5 | 2 | 2 | 32 | 68.8% | ||||
| 231 | City | Los Angeles | 22 | 32 | -10 | 14 | 20 | 25 | 88.0% | — | |||
| 231 | City | Fresno | 22 | 7 | +15 | 0 | 0 | 31 | 71.0% | — | |||
| 231 | City | San Luis Obispo | 22 | 15 | +7 | 18 | 14 | 31 | 71.0% | — | |||
| 231 | Unincorporated county area | Napa | 22 | 14 | +8 | 25 | 18 | 58 | 37.9% | — | |||
| 231 | City | Contra Costa | 22 | 33 | -11 | 8 | 6 | 78 | 28.2% | — | |||
| 231 | City | Los Angeles | 22 | 8 | +14 | 2 | 5 | 145 | 15.2% | — | |||
| 242 | City | San Bernardino | 21 | 23 | -2 | 17 | 8 | 140 | 15.0% | — | |||
| 242 | City | Humboldt | 21 | 26 | -5 | 17 | 20 | 143 | 14.7% | ||||
| 242 | City | San Joaquin | 21 | 14 | +7 | 3 | 28 | 178 | 11.8% | — | |||
| 242 | City | Yolo | 21 | 23 | -2 | 6 | 21 | 101 | 20.8% | ||||
| 242 | City | San Mateo | 21 | 27 | -6 | 24 | 20 | 32 | 65.6% | — | |||
| 247 | City | Contra Costa | 20 | 21 | -1 | 16 | 23 | 123 | 16.3% | ||||
| 247 | City | Orange | 20 | 2 | +18 | 7 | 15 | 40 | 50.0% | — | |||
| 247 | Unincorporated county area | Nevada | 20 | 15 | +5 | 25 | 21 | 76 | 26.3% | — | |||
| 247 | City | Los Angeles | 20 | 3 | +17 | 7 | 2 | 26 | 76.9% | — | |||
| 251 | City | Alameda | 19 | 12 | +7 | 9 | 25 | 228 | 8.3% | — | |||
| 251 | City | San Luis Obispo | 19 | 15 | +4 | 11 | 6 | 56 | 33.9% | ||||
| 251 | Unincorporated county area | Madera | 19 | 0 | +19 | 11 | 21 | 990 | 1.9% | — | |||
| 254 | City | Los Angeles | 18 | 29 | -11 | 52 | 72 | 23 | 78.3% | ||||
| 254 | Unincorporated county area | Butte | 18 | 15 | +3 | 11 | 20 | 285 | 6.3% | — | |||
| 254 | City | Monterey | 18 | 1 | +17 | 4 | 8 | 18 | 100.0% | ||||
| 254 | City | San Benito | 18 | 19 | -1 | 21 | 13 | 166 | 10.8% | — | |||
| 254 | City | Contra Costa | 18 | 0 | +18 | 19 | 2 | 27 | 66.7% | — | |||
| 254 | City | Monterey | 18 | 15 | +3 | 3 | 21 | 20 | 90.0% | ||||
| 254 | City | San Mateo | 18 | 16 | +2 | 40 | 7 | 20 | 90.0% | — | |||
| 254 | City | Placer | 18 | 15 | +3 | 20 | 6 | 303 | 5.9% | — | |||
| 254 | City | Marin | 18 | 15 | +3 | 11 | 12 | 19 | 94.7% | — | |||
| 263 | City | Los Angeles | 17 | 6 | +11 | 13 | 5 | 296 | 5.7% | ||||
| 263 | City | Contra Costa | 17 | 18 | -1 | 15 | 13 | 19 | 89.5% | ||||
| 263 | City | Contra Costa | 17 | 30 | -13 | 10 | 16 | 23 | 73.9% | — | |||
| 263 | Unincorporated county area | Solano | 17 | 14 | +3 | 11 | 10 | 48 | 35.4% | — | |||
| 263 | City | Orange | 17 | 15 | +2 | 4 | 15 | 54 | 31.5% | ||||
| 263 | City | San Bernardino | 17 | 22 | -5 | 11 | 17 | 162 | 10.5% | ||||
| 263 | City | San Bernardino | 17 | 4 | +13 | 3 | 4 | 50 | 34.0% | ||||
| 270 | City | Marin | 16 | 4 | +12 | 1 | 6 | 22 | 72.7% | ||||
| 270 | City | Los Angeles | 16 | 13 | +3 | 10 | 14 | 26 | 61.5% | — | |||
| 272 | City | San Luis Obispo | 15 | 26 | -11 | 13 | 11 | 16 | 93.8% | — | |||
| 272 | City | Los Angeles | 15 | 11 | +4 | 6 | 5 | 99 | 15.2% | — | |||
| 272 | City | Monterey | 15 | 19 | -4 | 8 | 13 | 23 | 65.2% | — | |||
| 272 | City | Santa Barbara | 15 | 17 | -2 | 19 | 11 | 20 | 75.0% | — | |||
| 272 | City | Riverside | 15 | 8 | +7 | 0 | 1 | 452 | 3.3% | — | |||
| 272 | City | Orange | 15 | 5 | +10 | 5 | 7 | 15 | 100.0% | ||||
| 272 | Unincorporated county area | Mendocino | 15 | 25 | -10 | 25 | 22 | 73 | 20.5% | ||||
| 272 | City | Orange | 15 | 17 | -2 | 9 | 15 | 154 | 9.7% | ||||
| 272 | City | Riverside | 15 | 12 | +3 | 5 | 6 | 299 | 5.0% | — | |||
| 272 | City | Los Angeles | 15 | 19 | -4 | 5 | 11 | 16 | 93.8% | — | |||
| 282 | City | San Luis Obispo | 14 | 25 | -11 | 14 | 15 | 88 | 15.9% | — | |||
| 282 | City | San Diego | 14 | 20 | -6 | 20 | 17 | 14 | 100.0% | — | |||
| 282 | City | Contra Costa | 14 | 26 | -12 | 23 | 26 | 86 | 16.3% | — | |||
| 282 | City | Marin | 14 | 2 | +12 | 7 | 5 | 15 | 93.3% | — | |||
| 282 | City | Monterey | 14 | 14 | 0 | 18 | 11 | 50 | 28.0% | — | |||
| 282 | City | Orange | 14 | 10 | +4 | 10 | 6 | 15 | 93.3% | — | |||
| 282 | City | Riverside | 14 | 15 | -1 | 24 | 10 | 1,429 | 1.0% | ||||
| 282 | City | Marin | 14 | 25 | -11 | 12 | 18 | 15 | 93.3% | ||||
| 282 | City | Alameda | 14 | 14 | 0 | 9 | 14 | 15 | 93.3% | ||||
| 282 | City | Orange | 14 | 12 | +2 | 5 | 16 | 22 | 63.6% | — | |||
| 282 | City | Los Angeles | 14 | 28 | -14 | 28 | 0 | 30 | 46.7% | ||||
| 282 | City | Riverside | 14 | 13 | +1 | 5 | 13 | 192 | 7.3% | — | |||
| 282 | City | Sonoma | 14 | 12 | +2 | 10 | 7 | 146 | 9.6% | — | |||
| 295 | City | Orange | 13 | 4 | +9 | 4 | 4 | 42 | 31.0% | — | |||
| 295 | City | San Joaquin | 13 | 1 | +12 | 0 | 0 | 821 | 1.6% | — | |||
| 295 | City | Monterey | 13 | 6 | +7 | 13 | 7 | 236 | 5.5% | — | |||
| 295 | City | Ventura | 13 | 16 | -3 | 7 | 16 | 13 | 100.0% | ||||
| 295 | City | Sacramento | 13 | 12 | +1 | 11 | 5 | 767 | 1.7% | — | |||
| 295 | Unincorporated county area | San Benito | 13 | 29 | -16 | 18 | 20 | 106 | 12.3% | ||||
| 295 | Unincorporated county area | Tehama | 13 | No Table A2 rows | No Table A2 rows | No Table A2 rows | 4 | 46 | 28.3% | ||||
| 295 | City | Stanislaus | 13 | 5 | +8 | 0 | 1 | 47 | 27.7% | — | |||
| 295 | City | Yolo | 13 | 12 | +1 | 0 | 0 | 196 | 6.6% | — | |||
| 304 | City | Los Angeles | 12 | 5 | +7 | 7 | 11 | 14 | 85.7% | ||||
| 304 | City | Solano | 12 | 15 | -3 | 12 | 15 | 247 | 4.9% | — | |||
| 304 | City | Placer | 12 | 4 | +8 | 2 | 9 | 501 | 2.4% | — | |||
| 304 | City | Santa Clara | 12 | 13 | -1 | 9 | 9 | 16 | 75.0% | — | |||
| 304 | City | Fresno | 12 | 0 | +12 | 0 | 8 | 22 | 54.5% | — | |||
| 304 | City | Napa | 12 | 12 | 0 | 4 | 15 | 25 | 48.0% | — | |||
| 304 | City | Riverside | 12 | 2 | +10 | 0 | 3 | 193 | 6.2% | — | |||
| 311 | City | Sacramento | 11 | 0 | +11 | 28 | 19 | 1,569 | 0.7% | — | |||
| 311 | City | San Mateo | 11 | 12 | -1 | 15 | 12 | 25 | 44.0% | — | |||
| 311 | City | Los Angeles | 11 | 5 | +6 | 3 | 11 | 15 | 73.3% | ||||
| 311 | City | Los Angeles | 11 | 7 | +4 | 7 | 7 | 22 | 50.0% | — | |||
| 311 | City | Riverside | 11 | 16 | -5 | 7 | 15 | 107 | 10.3% | — | |||
| 311 | City | San Mateo | 11 | 11 | 0 | 10 | 8 | 11 | 100.0% | — | |||
| 311 | City | Sonoma | 11 | 0 | +11 | 2 | 7 | 62 | 17.7% | — | |||
| 311 | City | Monterey | 11 | 13 | -2 | 24 | 32 | 11 | 100.0% | ||||
| 311 | Unincorporated county area | Tulare | 11 | 6 | +5 | 0 | 28 | 147 | 7.5% | — | |||
| 320 | City | Humboldt | 10 | 19 | -9 | 18 | 14 | 53 | 18.9% | — | |||
| 320 | City | Marin | 10 | 20 | -10 | 10 | 12 | 10 | 100.0% | — | |||
| 320 | City | Marin | 10 | 27 | -17 | 24 | 20 | 13 | 76.9% | — | |||
| 320 | City | Contra Costa | 10 | 4 | +6 | 3 | 4 | 10 | 100.0% | — | |||
| 320 | City | Contra Costa | 10 | 9 | +1 | 5 | 7 | 42 | 23.8% | — | |||
| 320 | City | El Dorado | 10 | 11 | -1 | 5 | 5 | 98 | 10.2% | — | |||
| 320 | Unincorporated county area | Yuba | 10 | 17 | -7 | 14 | 3 | 441 | 2.3% | — | |||
| 327 | City | San Diego | 9 | 5 | +4 | 13 | 9 | 24 | 37.5% | — | |||
| 327 | Unincorporated county area | Del Norte | 9 | 10 | -1 | 10 | 14 | 72 | 12.5% | ||||
| 327 | Unincorporated county area | Imperial | 9 | 13 | -4 | 0 | 2 | 121 | 7.4% | ||||
| 327 | Unincorporated county area | Mariposa | 9 | 5 | +4 | 6 | 0 | 55 | 16.4% | — | |||
| 327 | City | Riverside | 9 | 7 | +2 | 20 | 27 | 49 | 18.4% | ||||
| 327 | City | Contra Costa | 9 | 13 | -4 | 6 | 2 | 92 | 9.8% | — | |||
| 327 | Unincorporated county area | Plumas | 9 | 6 | +3 | 1 | 0 | 54 | 16.7% | — | |||
| 327 | City | Santa Cruz | 9 | 6 | +3 | 2 | 4 | 153 | 5.9% | — | |||
| 327 | City | Santa Cruz | 9 | 17 | -8 | 16 | 17 | 20 | 45.0% | ||||
| 336 | Unincorporated county area | Amador | 8 | 2 | +6 | 2 | 8 | 44 | 18.2% | — | |||
| 336 | City | Napa | 8 | 8 | 0 | 7 | 5 | 26 | 30.8% | — | |||
| 336 | City | Tulare | 8 | 4 | +4 | 1 | 4 | 116 | 6.9% | — | |||
| 336 | City | Ventura | 8 | 11 | -3 | 0 | 4 | 40 | 20.0% | ||||
| 336 | City | Santa Barbara | 8 | 34 | -26 | 7 | 4 | 8 | 100.0% | — | |||
| 336 | City | Riverside | 8 | 13 | -5 | 1 | 20 | 64 | 12.5% | ||||
| 336 | Unincorporated county area | Inyo | 8 | 7 | +1 | 0 | 2 | 14 | 57.1% | ||||
| 336 | City | Orange | 8 | 0 | +8 | 0 | 28 | 1,409 | 0.6% | — | |||
| 336 | City | Mono | 8 | 3 | +5 | 3 | 4 | 25 | 32.0% | — | |||
| 336 | City | Stanislaus | 8 | 4 | +4 | 1 | 4 | 22 | 36.4% | — | |||
| 336 | City | Fresno | 8 | 10 | -2 | 1 | 8 | 22 | 36.4% | — | |||
| 336 | City | San Joaquin | 8 | 6 | +2 | 4 | 4 | 99 | 8.1% | — | |||
| 336 | City | Sonoma | 8 | 9 | -1 | 4 | 12 | 40 | 20.0% | — | |||
| 336 | City | Kern | 8 | 5 | +3 | 3 | 9 | 454 | 1.8% | — | |||
| 336 | City | Los Angeles | 8 | 9 | -1 | 4 | 2 | 8 | 100.0% | — | |||
| 351 | City | Placer | 7 | 2 | +5 | 4 | 4 | 22 | 31.8% | ||||
| 351 | City | Solano | 7 | 17 | -10 | 13 | 3 | 7 | 100.0% | — | |||
| 351 | City | San Mateo | 7 | 6 | +1 | 0 | 6 | 9 | 77.8% | — | |||
| 351 | City | Kings | 7 | 11 | -4 | 4 | 5 | 391 | 1.8% | — | |||
| 351 | City | Sonoma | 7 | 7 | 0 | 2 | 10 | 114 | 6.1% | ||||
| 351 | City | Merced | 7 | 0 | +7 | 1 | 1 | 90 | 7.8% | — | |||
| 351 | City | Los Angeles | 7 | 27 | -20 | 25 | 14 | 8 | 87.5% | — | |||
| 351 | City | Orange | 7 | 9 | -2 | 7 | 12 | 9 | 77.8% | ||||
| 351 | City | El Dorado | 7 | 13 | -6 | 10 | 5 | 116 | 6.0% | ||||
| 351 | City | Tehama | 7 | 0 | +7 | 2 | 4 | 46 | 15.2% | — | |||
| 351 | City | Marin | 7 | 16 | -9 | 8 | 13 | 7 | 100.0% | ||||
| 351 | City | Marin | 7 | 14 | -7 | 12 | 7 | 8 | 87.5% | — | |||
| 363 | City | Napa | 6 | 6 | 0 | 5 | 8 | 156 | 3.8% | — | |||
| 363 | City | Kern | 6 | 13 | -7 | 0 | 0 | 6 | 100.0% | — | |||
| 363 | City | Riverside | 6 | 3 | +3 | 7 | 1 | 6 | 100.0% | — | |||
| 363 | City | Santa Cruz | 6 | 10 | -4 | 7 | 9 | 12 | 50.0% | ||||
| 363 | City | Marin | 6 | 13 | -7 | 16 | 5 | 7 | 85.7% | — | |||
| 363 | City | Sacramento | 6 | 5 | +1 | 0 | 4 | 295 | 2.0% | — | |||
| 363 | Unincorporated county area | Humboldt | 6 | 31 | -25 | 24 | 32 | 74 | 8.1% | — | |||
| 363 | City | Fresno | 6 | 3 | +3 | 0 | 3 | 49 | 12.2% | — | |||
| 363 | Unincorporated county area | Lake | 6 | 8 | -2 | 2 | 2 | 63 | 9.5% | ||||
| 363 | City | Tulare | 6 | 9 | -3 | 6 | 5 | 7 | 85.7% | — | |||
| 363 | City | Placer | 6 | 7 | -1 | 3 | 4 | 16 | 37.5% | — | |||
| 363 | City | Kern | 6 | 7 | -1 | 3 | 5 | 54 | 11.1% | ||||
| 375 | City | San Bernardino | 5 | 2 | +3 | 2 | 9 | 6 | 83.3% | — | |||
| 375 | Unincorporated county area | Calaveras | 5 | 6 | -1 | 4 | 6 | 65 | 7.7% | ||||
| 375 | City | Madera | 5 | 6 | -1 | 0 | 1 | 121 | 4.1% | ||||
| 375 | City | Monterey | 5 | 3 | +2 | 1 | 4 | 5 | 100.0% | ||||
| 375 | City | Kern | 5 | 15 | -10 | 0 | 9 | 108 | 4.6% | — | |||
| 375 | City | Alameda | 5 | 4 | +1 | 22 | 5 | 6 | 83.3% | ||||
| 375 | City | Riverside | 5 | 8 | -3 | 5 | 1 | 13 | 38.5% | — | |||
| 375 | City | Los Angeles | 5 | 9 | -4 | 4 | 7 | 49 | 10.2% | — | |||
| 375 | Unincorporated county area | Merced | 5 | 2 | +3 | 2 | 2 | 51 | 9.8% | — | |||
| 375 | Unincorporated county area | Mono | 5 | 5 | 0 | 1 | 2 | 32 | 15.6% | — | |||
| 375 | City | Stanislaus | 5 | 8 | -3 | 2 | 4 | 8 | 62.5% | — | |||
| 375 | City | Los Angeles | 5 | 7 | -2 | 6 | 5 | 5 | 100.0% | — | |||
| 375 | Unincorporated county area | Siskiyou | 5 | 2 | +3 | 0 | 2 | 45 | 11.1% | ||||
| 375 | City | Santa Barbara | 5 | 1 | +4 | 1 | 1 | 5 | 100.0% | ||||
| 375 | City | Solano | 5 | 5 | 0 | 5 | 5 | 103 | 4.9% | — | |||
| 375 | City | Mendocino | 5 | 1 | +4 | 1 | 1 | 6 | 83.3% | — | |||
| 375 | City | Sutter | 5 | 7 | -2 | 3 | 2 | 348 | 1.4% | — | |||
| 392 | City | Riverside | 4 | 3 | +1 | 5 | 12 | 67 | 6.0% | — | |||
| 392 | City | Santa Barbara | 4 | 1 | +3 | 2 | 1 | 8 | 50.0% | — | |||
| 392 | City | Merced | 4 | 1 | +3 | 0 | 0 | 4 | 100.0% | ||||
| 392 | City | Orange | 4 | 5 | -1 | 1 | 2 | 4 | 100.0% | ||||
| 392 | City | Butte | 4 | 0 | +4 | 4 | 4 | 511 | 0.8% | — | |||
| 392 | City | Stanislaus | 4 | No Table A2 rows | No Table A2 rows | No Table A2 rows | 0 | 176 | 2.3% | ||||
| 392 | City | Orange | 4 | 1 | +3 | 1 | 0 | 4 | 100.0% | — | |||
| 392 | City | Orange | 4 | 2 | +2 | 2 | 5 | 6 | 66.7% | ||||
| 392 | City | Sonoma | 4 | 11 | -7 | 5 | 8 | 8 | 50.0% | — | |||
| 392 | City | Kern | 4 | 1 | +3 | 3 | 1 | 12 | 33.3% | ||||
| 392 | Unincorporated county area | Tuolumne | 4 | 0 | +4 | 8 | 0 | 87 | 4.6% | — | |||
| 392 | Unincorporated county area | Yolo | 4 | 1 | +3 | 5 | 4 | 22 | 18.2% | — | |||
| 404 | City | San Bernardino | 3 | 6 | -3 | 1 | 1 | 40 | 7.5% | ||||
| 404 | City | Sonoma | 3 | 4 | -1 | 1 | 2 | 3 | 100.0% | — | |||
| 404 | City | Kings | 3 | 0 | +3 | 0 | 0 | 61 | 4.9% | ||||
| 404 | City | Solano | 3 | 6 | -3 | 2 | 1 | 235 | 1.3% | ||||
| 404 | City | San Joaquin | 3 | 0 | +3 | 0 | 1 | 4 | 75.0% | — | |||
| 404 | City | Humboldt | 3 | 3 | 0 | 2 | 3 | 4 | 75.0% | — | |||
| 404 | City | Mendocino | 3 | 6 | -3 | 3 | 2 | 9 | 33.3% | ||||
| 404 | City | San Bernardino | 3 | 4 | -1 | 0 | 0 | 3 | 100.0% | — | |||
| 404 | City | Nevada | 3 | 5 | -2 | 2 | 3 | 49 | 6.1% | — | |||
| 404 | City | Contra Costa | 3 | 2 | +1 | 0 | 4 | 4 | 75.0% | — | |||
| 404 | City | Merced | 3 | 4 | -1 | 6 | 0 | 505 | 0.6% | — | |||
| 404 | City | Butte | 3 | 0 | +3 | 1 | 0 | 67 | 4.5% | — | |||
| 404 | City | Riverside | 3 | 7 | -4 | 0 | 2 | 301 | 1.0% | — | |||
| 404 | City | San Benito | 3 | 0 | +3 | 1 | 3 | 3 | 100.0% | ||||
| 404 | City | Contra Costa | 3 | 11 | -8 | 8 | 1 | 76 | 3.9% | — | |||
| 404 | City | Shasta | 3 | 2 | +1 | 0 | 0 | 8 | 37.5% | — | |||
| 404 | City | Lassen | 3 | 0 | +3 | 0 | 2 | 11 | 27.3% | ||||
| 404 | City | Mendocino | 3 | 8 | -5 | 1 | 3 | 5 | 60.0% | — | |||
| 422 | City | Orange | 2 | 1 | +1 | 0 | 1 | 2 | 100.0% | ||||
| 422 | City | Kings | 2 | 0 | +2 | 0 | 0 | 4 | 50.0% | ||||
| 422 | City | San Bernardino | 2 | 0 | +2 | 0 | 0 | 5 | 40.0% | ||||
| 422 | City | Inyo | 2 | 3 | -1 | 5 | 0 | 3 | 66.7% | ||||
| 422 | City | Fresno | 2 | 1 | +1 | 2 | 0 | 100 | 2.0% | — | |||
| 422 | Unincorporated county area | Kings | 2 | 2 | 0 | 9 | 1 | 16 | 12.5% | — | |||
| 422 | City | Kern | 2 | No Table A2 rows | No Table A2 rows | No Table A2 rows | 1 | 3 | 66.7% | ||||
| 422 | Unincorporated county area | Modoc | 2 | 0 | +2 | 0 | 0 | 11 | 18.2% | — | |||
| 422 | City | Fresno | 2 | 0 | +2 | 0 | 0 | 32 | 6.2% | ||||
| 422 | City | San Luis Obispo | 2 | 4 | -2 | 3 | 2 | 9 | 22.2% | — | |||
| 422 | Unincorporated county area | Sutter | 2 | 12 | -10 | 4 | 6 | 12 | 16.7% | — | |||
| 422 | City | Orange | 2 | 2 | 0 | 3 | 0 | 2 | 100.0% | ||||
| 422 | City | Kern | 2 | 6 | -4 | 2 | 3 | 2 | 100.0% | — | |||
| 422 | City | Yolo | 2 | 2 | 0 | 5 | 5 | 2 | 100.0% | — | |||
| 422 | City | Napa | 2 | 6 | -4 | 0 | 2 | 3 | 66.7% | — | |||
| 438 | City | Shasta | 1 | 0 | +1 | 0 | 1 | 8 | 12.5% | — | |||
| 438 | City | Merced | 1 | 0 | +1 | 1 | 0 | 10 | 10.0% | — | |||
| 438 | City | Los Angeles | 1 | 0 | +1 | 1 | 2 | 6 | 16.7% | ||||
| 438 | City | Kern | 1 | 0 | +1 | 0 | 0 | 130 | 0.8% | ||||
| 438 | City | San Mateo | 1 | No Table A2 rows | No Table A2 rows | No Table A2 rows | 0 | 1 | 100.0% | ||||
| 438 | City | Colusa | 1 | No Table A2 rows | No Table A2 rows | No Table A2 rows | 0 | 55 | 1.8% | ||||
| 438 | Unincorporated county area | Colusa | 1 | 3 | -2 | 1 | 0 | 5 | 20.0% | — | |||
| 438 | City | Sonoma | 1 | 4 | -3 | 7 | 2 | 3 | 33.3% | — | |||
| 438 | City | Tulare | 1 | 2 | -1 | 0 | 0 | 27 | 3.7% | — | |||
| 438 | City | Tulare | 1 | 1 | 0 | 0 | 0 | 1 | 100.0% | ||||
| 438 | City | Humboldt | 1 | 8 | -7 | 3 | 3 | 18 | 5.6% | — | |||
| 438 | City | Imperial | 1 | 5 | -4 | 0 | 0 | 2 | 50.0% | ||||
| 438 | City | Fresno | 1 | 1 | 0 | 0 | 0 | 18 | 5.6% | ||||
| 438 | City | Los Angeles | 1 | 1 | 0 | 2 | 1 | 4 | 25.0% | — | |||
| 438 | Unincorporated county area | Lassen | 1 | 0 | +1 | 1 | 1 | 6 | 16.7% | ||||
| 438 | City | Yuba | 1 | 0 | +1 | 0 | 0 | 3 | 33.3% | ||||
| 438 | City | Kern | 1 | 0 | +1 | 7 | 0 | 73 | 1.4% | ||||
| 438 | City | Nevada | 1 | 4 | -3 | 5 | 0 | 7 | 14.3% | — | |||
| 438 | City | Fresno | 1 | 0 | +1 | 0 | 0 | 3 | 33.3% | ||||
| 438 | City | Plumas | 1 | No Table A2 rows | No Table A2 rows | No Table A2 rows | 0 | 1 | 100.0% | ||||
| 438 | City | Los Angeles | 1 | 2 | -1 | 0 | 0 | 1 | 100.0% | ||||
| 438 | City | Tuolumne | 1 | 3 | -2 | 0 | 0 | 1 | 100.0% | ||||
| 438 | City | Amador | 1 | 1 | 0 | 1 | 0 | 4 | 25.0% | — | |||
| 438 | City | San Bernardino | 1 | 4 | -3 | 0 | 1 | 6 | 16.7% | — | |||
| 438 | City | Colusa | 1 | 0 | +1 | 0 | 3 | 1 | 100.0% | — | |||
| 463 | Unincorporated county area | Alpine | 0 | 0 | 0 | 1 | 2 | 4 | 0.0% | ||||
| 463 | City | Amador | 0 | 1 | -1 | 0 | 1 | 1 | 0.0% | ||||
| 463 | City | Calaveras | 0 | 0 | 0 | 0 | 0 | 2 | 0.0% | — | |||
| 463 | City | Butte | 0 | No Table A2 rows | No Table A2 rows | No Table A2 rows | 0 | 0 | No Table A2 rows | ||||
| 463 | City | Humboldt | 0 | 2 | -2 | 0 | 0 | 0 | No Table A2 rows | ||||
| 463 | City | Riverside | 0 | 0 | 0 | 0 | 0 | 0 | No Table A2 rows | — | |||
| 463 | City | Los Angeles | 0 | 0 | 0 | 1 | 0 | 3 | 0.0% | ||||
| 463 | City | Imperial | 0 | No Table A2 rows | No Table A2 rows | No Table A2 rows | 0 | 4 | 0.0% | ||||
| 463 | City | Lake | 0 | 2 | -2 | 1 | 0 | 0 | No Table A2 rows | — | |||
| 463 | City | Fresno | 0 | 0 | 0 | 0 | 1 | 1 | 0.0% | — | |||
| 463 | City | Los Angeles | 0 | No Table A2 rows | No Table A2 rows | No Table A2 rows | 0 | 0 | No Table A2 rows | ||||
| 463 | City | Fresno | 0 | 0 | 0 | 0 | 0 | 12 | 0.0% | — | |||
| 463 | City | Butte | 0 | No Table A2 rows | No Table A2 rows | No Table A2 rows | 0 | 36 | 0.0% | ||||
| 463 | City | Fresno | 0 | 0 | 0 | 0 | 0 | 1 | 0.0% | ||||
| 463 | City | Amador | 0 | 0 | 0 | 0 | 0 | 9 | 0.0% | — | |||
| 463 | City | Sacramento | 0 | No Table A2 rows | No Table A2 rows | No Table A2 rows | 0 | 3 | 0.0% | ||||
| 463 | City | Amador | 0 | 0 | 0 | 0 | 0 | 4 | 0.0% | — | |||
| 463 | City | Lake | 0 | 0 | 0 | 1 | 0 | 66 | 0.0% | — | |||
| 463 | City | Kings | 0 | 6 | -6 | 3 | 1 | 4 | 0.0% | — | |||
| 463 | City | Sutter | 0 | 0 | 0 | 0 | 0 | 2 | 0.0% | — | |||
| 463 | City | Los Angeles | 0 | 15 | -15 | 0 | 0 | 0 | No Table A2 rows | ||||
| 463 | City | San Mateo | 0 | 14 | -14 | 10 | 9 | 97 | 0.0% | — | |||
| 463 | City | Siskiyou | 0 | 0 | 0 | 1 | 0 | 1 | 0.0% | ||||
| 463 | City | San Bernardino | 0 | 0 | 0 | 0 | 0 | 1 | 0.0% | — | |||
| 463 | City | Glenn | 0 | No Table A2 rows | No Table A2 rows | No Table A2 rows | 2 | 0 | No Table A2 rows | ||||
| 463 | City | Mendocino | 0 | No Table A2 rows | No Table A2 rows | No Table A2 rows | 0 | 0 | No Table A2 rows | ||||
| 463 | City | San Bernardino | 0 | 65 | -65 | 65 | 98 | 0 | No Table A2 rows | ||||
| 463 | City | Humboldt | 0 | No Table A2 rows | No Table A2 rows | No Table A2 rows | 0 | 1 | 0.0% | ||||
| 463 | City | Solano | 0 | 0 | 0 | 0 | 0 | 49 | 0.0% | — | |||
| 463 | City | Stanislaus | 0 | 8 | -8 | 2 | 3 | 88 | 0.0% | — | |||
| 463 | Unincorporated county area | Sierra | 0 | 3 | -3 | 1 | 0 | 11 | 0.0% | — | |||
| 463 | City | Kern | 0 | 0 | 0 | 2 | 0 | 4 | 0.0% | — | |||
| 463 | City | Humboldt | 0 | 0 | 0 | 0 | 0 | 2 | 0.0% | ||||
| 463 | Unincorporated county area | Trinity | 0 | No Table A2 rows | No Table A2 rows | No Table A2 rows | 3 | 4 | 0.0% | ||||
| 463 | City | Siskiyou | 0 | No Table A2 rows | No Table A2 rows | No Table A2 rows | 0 | 0 | No Table A2 rows | ||||
| 463 | City | Siskiyou | 0 | 0 | 0 | 0 | 0 | 4 | 0.0% | ||||
| 463 | City | Los Angeles | 0 | 1 | -1 | 0 | 2 | 0 | No Table A2 rows | ||||
| 463 | City | Yuba | 0 | 1 | -1 | 0 | 0 | 12 | 0.0% | ||||
| 463 | City | Glenn | 0 | 0 | 0 | 0 | 0 | 1 | 0.0% | ||||
| 463 | City | Tulare | 0 | 0 | 0 | 0 | 1 | 0 | No Table A2 rows | — | |||
| 463 | City | Siskiyou | 0 | 1 | -1 | 1 | 0 | 0 | No Table A2 rows | ||||
| — | City | Modoc | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | ||||
| — | City | San Bernardino | No Table A2 rows | 20 | No Table A2 rows | 0 | No Table A2 rows | No Table A2 rows | No Table A2 rows | ||||
| — | City | Los Angeles | No Table A2 rows | 54 | No Table A2 rows | 40 | No Table A2 rows | No Table A2 rows | No Table A2 rows | ||||
| — | City | Riverside | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | ||||
| — | City | Riverside | No Table A2 rows | 1 | No Table A2 rows | 1 | No Table A2 rows | No Table A2 rows | No Table A2 rows | ||||
| — | City | Contra Costa | No Table A2 rows | 5 | No Table A2 rows | 3 | No Table A2 rows | No Table A2 rows | No Table A2 rows | ||||
| — | City | Placer | No Table A2 rows | 1 | No Table A2 rows | 1 | No Table A2 rows | No Table A2 rows | No Table A2 rows | ||||
| — | City | Los Angeles | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | ||||
| — | City | Tehama | No Table A2 rows | 0 | No Table A2 rows | 2 | No Table A2 rows | No Table A2 rows | No Table A2 rows | ||||
| — | City | Del Norte | No Table A2 rows | 27 | No Table A2 rows | 1 | No Table A2 rows | No Table A2 rows | No Table A2 rows | ||||
| — | City | Siskiyou | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | ||||
| — | City | Merced | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | ||||
| — | City | Siskiyou | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | ||||
| — | City | Siskiyou | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | ||||
| — | City | Siskiyou | No Table A2 rows | 0 | No Table A2 rows | 0 | No Table A2 rows | No Table A2 rows | No Table A2 rows | ||||
| — | Unincorporated county area | Glenn | No Table A2 rows | 1 | No Table A2 rows | 0 | No Table A2 rows | No Table A2 rows | No Table A2 rows | ||||
| — | City | Stanislaus | No Table A2 rows | 0 | No Table A2 rows | 0 | No Table A2 rows | No Table A2 rows | No Table A2 rows | ||||
| — | City | Los Angeles | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | ||||
| — | City | Los Angeles | No Table A2 rows | 1 | No Table A2 rows | 0 | No Table A2 rows | No Table A2 rows | No Table A2 rows | ||||
| — | City | Los Angeles | No Table A2 rows | 104 | No Table A2 rows | 17 | No Table A2 rows | No Table A2 rows | No Table A2 rows | ||||
| — | City | Madera | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | ||||
| — | City | Siskiyou | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | ||||
| — | City | Amador | No Table A2 rows | 0 | No Table A2 rows | 0 | No Table A2 rows | No Table A2 rows | No Table A2 rows | ||||
| — | City | Los Angeles | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | ||||
| — | City | Fresno | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | ||||
| — | City | Monterey | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | ||||
| — | City | Fresno | No Table A2 rows | 1 | No Table A2 rows | 0 | No Table A2 rows | No Table A2 rows | No Table A2 rows | ||||
| — | City | Ventura | No Table A2 rows | 0 | No Table A2 rows | 0 | No Table A2 rows | No Table A2 rows | No Table A2 rows | ||||
| — | City | Stanislaus | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | No Table A2 rows | ||||
| — | City | Los Angeles | No Table A2 rows | 95 | No Table A2 rows | 76 | No Table A2 rows | No Table A2 rows | No Table A2 rows | ||||
| — | City | Imperial | No Table A2 rows | 3 | No Table A2 rows | 2 | No Table A2 rows | No Table A2 rows | No Table A2 rows | ||||
| — | California total | — | All counties | 32,363 | 31,081 | +1,282 | 20,740 | 22,699 | 123,726 | 26.2% | 32,363 permitted in 2025 | Totals stay fixed when filters change. | |
Date-matched permits, completions and trends count values whose stage date matches the report year. The as-filed method includes any issue year or undated unit listed in the 2025 report. Completion counts are not divided by permit counts. No visitor search or filter choice is stored.
The City of Los Angeles issued permits for 7,451 ADUs in 2025, the most in California. San Diego was second with 2,165, and the unincorporated part of Los Angeles County was third with 1,361. The 10 cities with the most ADU permits issued 12,948 of the state's 32,363, or 40%.
Los Angeles is in a class by itself. Its 7,451 ADU permits are more than the next five cities put together: San Diego, Long Beach, San José, Santa Maria and Garden Grove add up to 4,224.
Search for any city or county below. "Unincorporated" means the parts of a county outside any city's limits. The county issues permits there, so a county row never includes its cities.
Top 25 California cities and county areas by ADU permits, 2025
| Rank | City or county area | County | ADU permits 2025 | ADU permits 2024 | ADUs completed 2025 | All homes permitted 2025 | ADU share of homes permitted |
|---|---|---|---|---|---|---|---|
| 1 | Los Angeles | Los Angeles | 7,451 | 7,058 | 5,883 | 18,071 | 41.2% |
| 2 | San Diego | San Diego | 2,165 | 2,282 | 229 | 7,942 | 27.3% |
| 3 | Los Angeles County (unincorporated) | Los Angeles | 1,361 | 1,044 | 811 | 3,235 | 42.1% |
| 4 | Long Beach | Los Angeles | 644 | 747 | 649 | 1,218 | 52.9% |
| 5 | San José | Santa Clara | 502 | 558 | 360 | 2,629 | 19.1% |
| 6 | Santa Maria | Santa Barbara | 479 | 435 | 327 | 930 | 51.5% |
| 7 | Garden Grove | Orange | 434 | 426 | 359 | 637 | 68.1% |
| 8 | San Diego County (unincorporated) | San Diego | 403 | 489 | 407 | 932 | 43.2% |
| 9 | Sacramento | Sacramento | 378 | 348 | 262 | 2,737 | 13.8% |
| 10 | Glendale | Los Angeles | 371 | 229 | 289 | 386 | 96.1% (44.2% as filed) |
| 11 | Anaheim | Orange | 266 | 277 | 226 | 452 | 58.8% (31.3% as filed) |
| 12 | Santa Ana | Orange | 258 | 193 | 172 | 316 | 81.6% |
| 13 | Oxnard | Ventura | 244 | 216 | 174 | 245 | 99.6% (34.5% as filed) |
| 14 | Burbank | Los Angeles | 241 | 411 | 72 | 284 | 84.9% |
| 15 | Fontana | San Bernardino | 240 | 179 | 123 | 876 | 27.4% |
| 16 | San Bernardino | San Bernardino | 230 | 138 | 143 | 402 | 57.2% |
| 17 | Riverside County (unincorporated) | Riverside | 227 | 9 | 31 | 1,956 | 11.6% |
| 17 | Santa Barbara County (unincorporated) | Santa Barbara | 227 | 219 | 168 | 613 | 37.0% |
| 19 | Chula Vista | San Diego | 223 | 246 | 202 | 717 | 31.1% |
| 20 | Pasadena | Los Angeles | 222 | 208 | 121 | 698 | 31.8% |
| 21 | Westminster | Orange | 215 | 232 | 193 | 260 | 82.7% |
| 22 | Lancaster | Los Angeles | 209 | 320 | 270 | 463 | 45.1% |
| 23 | Riverside | Riverside | 208 | 309 | 240 | 415 | 50.1% |
| 23 | Salinas | Monterey | 208 | 216 | 140 | 221 | 94.1% |
| 25 | Oakland | Alameda | 192 | 213 | 183 | 712 | 27.0% |
| Source: The Dwelling Index analysis of California HCD Annual Progress Report data, Table A2, file updated Sept. 25, 2026, checked Sept. 29, 2026. Counts include only permits or completions whose stage date matches the report year. | |||||||
Three cities in the top 25 get two shares. Glendale, Anaheim and Oxnard also listed permits dated in other years in their 2025 reports. Count everything they filed, and ADUs fall to 44.2%, 31.3% and 34.5% of all permitted units listed in their 2025 reports. The full table has both numbers for every place.
San Diego reported 229 finished ADUs in 2025 against 2,165 permits. The state file doesn't say why its finished count is so low, so read it as reported. If you're building there, here's how San Diego's ADU permit process works.
Ten cities issued 40% of California's ADU permits in 2025
Los Angeles alone issued 7,451 of the state's 32,363 (23%). The ten cities together: 12,948.
Bar chart: ten California cities issued 12,948 of the state's 32,363 ADU permits in 2025, or 40%. Los Angeles led with 7,451, followed by San Diego with 2,165 and Long Beach with 644. Source: California HCD APR data, Table A2.
How many ADUs did California permit and finish each year?
California issued permits for 32,363 ADUs in 2025, up from 8,912 in 2018 — 3.6 times as many. Cities and counties reported 22,699 ADUs finished in 2025, up from 3,171 in 2018. Over the same years, ADUs went from 7.8% of all homes permitted to 26.2%.
California ADU permits and completions by year, 2018–2025
| Year | ADU permits | Change from prior year | All homes permitted | ADU share of homes permitted | ADUs completed | ADU share of homes completed |
|---|---|---|---|---|---|---|
| 2018 | 8,912 | — | 114,664 | 7.8% | 3,171 | 4.5% |
| 2019 | 12,706 | +42.6% | 121,597 | 10.4% | 5,895 | 7.8% |
| 2020 | 12,775 | +0.5% | 112,425 | 11.4% | 7,975 | 9.4% |
| 2021 | 20,623 | +61.4% | 134,963 | 15.3% | 10,041 | 10.2% |
| 2022 | 25,492 | +23.6% | 142,140 | 17.9% | 14,015 | 13.8% |
| 2023 | 28,424 | +11.5% | 134,847 | 21.1% | 17,724 | 17.6% |
| 2024 | 31,081 | +9.3% | 119,189 | 26.1% | 20,740 | 18.1% |
| 2025 | 32,363 | +4.1% | 123,726 | 26.2% | 22,699 | 20.2% |
| Source: The Dwelling Index analysis of California HCD Annual Progress Report data, Table A2, file updated Sept. 25, 2026, checked Sept. 29, 2026. Each year counts permits and completions dated in that same report year. | ||||||
Here's the change in one picture. In 2018, about 1 in every 13 homes that got a permit in California was an ADU. By 2025 it was more than 1 in 4.
ADUs went from 1 in 13 to more than 1 in 4 California homes permitted
ADU permits and ADU share of all homes permitted, 2018–2025
Bar and line chart: California ADU permits rose from 8,912 in 2018 to 32,363 in 2025, and ADUs grew from 7.8% to 26.2% of all homes permitted. Source: California HCD APR data, Table A2.
What counts as an ADU permit here?
One ADU permit in these numbers means one housing unit that got a building permit, counted only when the permit date falls in that same report year. One permit document can cover more than one unit, so these are counts of homes, not paperwork.
The state's form counts a unit as an ADU if it is attached to a house, detached, or built inside the living area, and has its own place to live, sleep, eat, cook and use the bathroom. That includes small efficiency units and manufactured homes used as ADUs (HCD reporting instructions).
What counts as a finished ADU?
A finished ADU is one where the city or county issued a certificate of occupancy, or other proof it's ready to live in, such as a final inspection or a notice of completion, during that year (HCD reporting instructions). Think of the permit as the "go" sign and the finish as the "move in" sign.
What share of California homes permitted and finished are ADUs?
ADUs were 26.2% of the 123,726 homes permitted in California in 2025 (32,363 units) and 20.2% of the 112,286 homes finished (22,699 units). In 62 of the 293 cities and counties that permitted at least 50 homes, ADUs were more than half of permitted units under both counting methods.
Picture 100 homes that got permits in California last year. About 26 of them were ADUs.
Where were ADUs most of the homes permitted?
These are the 62 places. Each one permitted at least 50 homes in 2025, and ADUs were more than half of them whether you match permit dates to the 2025 report year or count everything the place listed in that report. Places that pass only one of those tests are left off.
In Inglewood, 147 of 149 homes permitted in 2025 were ADUs. In Hillsborough, 56 of 58.
California cities and county areas where ADUs were more than half of new homes permitted, 2025
| City or county area | County | ADU permits 2025 | All homes permitted 2025 | ADU share (date matched) | ADU share (as filed) |
|---|---|---|---|---|---|
| Buena Park | Orange | 58 | 58 | 100.0% | 58.1% |
| Inglewood | Los Angeles | 147 | 149 | 98.7% | 98.7% |
| Diamond Bar | Los Angeles | 50 | 51 | 98.0% | 98.0% |
| South Gate | Los Angeles | 154 | 158 | 97.5% | 97.5% |
| Norwalk | Los Angeles | 119 | 123 | 96.7% | 96.7% |
| Monrovia | Los Angeles | 58 | 60 | 96.7% | 96.7% |
| Hillsborough | San Mateo | 56 | 58 | 96.6% | 96.6% |
| Gardena | Los Angeles | 52 | 54 | 96.3% | 96.3% |
| San Leandro | Alameda | 50 | 52 | 96.2% | 96.2% |
| National City | San Diego | 49 | 51 | 96.1% | 96.1% |
| Whittier | Los Angeles | 86 | 91 | 94.5% | 94.5% |
| Salinas | Monterey | 208 | 221 | 94.1% | 94.1% |
| Culver City | Los Angeles | 83 | 89 | 93.3% | 93.3% |
| Monterey Park | Los Angeles | 74 | 85 | 87.1% | 89.7% |
| Baldwin Park | Los Angeles | 119 | 137 | 86.9% | 86.9% |
| Paramount | Los Angeles | 53 | 62 | 85.5% | 78.7% |
| Burbank | Los Angeles | 241 | 284 | 84.9% | 84.9% |
| Westminster | Orange | 215 | 260 | 82.7% | 82.7% |
| Torrance | Los Angeles | 89 | 108 | 82.4% | 87.8% |
| Santa Ana | Orange | 258 | 316 | 81.6% | 81.6% |
| Laguna Beach | Orange | 66 | 81 | 81.5% | 75.9% |
| Lakewood | Los Angeles | 99 | 122 | 81.1% | 85.0% |
| Alameda | Alameda | 52 | 65 | 80.0% | 80.0% |
| Coachella | Riverside | 129 | 163 | 79.1% | 79.1% |
| Imperial Beach | San Diego | 56 | 71 | 78.9% | 78.9% |
| Palo Alto | Santa Clara | 136 | 174 | 78.2% | 78.2% |
| Santa Cruz County (unincorporated) | Santa Cruz | 43 | 55 | 78.2% | 78.2% |
| Artesia | Los Angeles | 39 | 50 | 78.0% | 78.0% |
| Rosemead | Los Angeles | 136 | 178 | 76.4% | 76.4% |
| San Gabriel | Los Angeles | 51 | 68 | 75.0% | 75.0% |
| Atherton | San Mateo | 45 | 60 | 75.0% | 75.0% |
| Hayward | Alameda | 56 | 75 | 74.7% | 74.7% |
| Alhambra | Los Angeles | 102 | 137 | 74.5% | 74.5% |
| Greenfield | Monterey | 38 | 51 | 74.5% | 74.5% |
| Upland | San Bernardino | 65 | 88 | 73.9% | 73.1% |
| Los Gatos | Santa Clara | 53 | 72 | 73.6% | 52.5% |
| Calexico | Imperial | 71 | 97 | 73.2% | 73.2% |
| Hawthorne | Los Angeles | 76 | 104 | 73.1% | 73.1% |
| Downey | Los Angeles | 146 | 202 | 72.3% | 80.8% |
| Pico Rivera | Los Angeles | 96 | 136 | 70.6% | 70.6% |
| Marin County (unincorporated) | Marin | 85 | 122 | 69.7% | 69.1% |
| Garden Grove | Orange | 434 | 637 | 68.1% | 68.1% |
| Santa Clara County (unincorporated) | Santa Clara | 79 | 121 | 65.3% | 65.3% |
| Ventura County (unincorporated) | Ventura | 98 | 152 | 64.5% | 64.5% |
| Burlingame | San Mateo | 42 | 66 | 63.6% | 63.6% |
| Arcadia | Los Angeles | 98 | 155 | 63.2% | 63.2% |
| Glendora | Los Angeles | 57 | 93 | 61.3% | 61.3% |
| Huntington Beach | Orange | 87 | 144 | 60.4% | 59.2% |
| Simi Valley | Ventura | 122 | 213 | 57.3% | 57.3% |
| San Bernardino | San Bernardino | 230 | 402 | 57.2% | 57.2% |
| Seaside | Monterey | 34 | 60 | 56.7% | 56.7% |
| Campbell | Santa Clara | 52 | 93 | 55.9% | 54.8% |
| Saratoga | Santa Clara | 119 | 214 | 55.6% | 55.6% |
| Santa Barbara | Santa Barbara | 141 | 255 | 55.3% | 55.3% |
| Stanislaus County (unincorporated) | Stanislaus | 103 | 188 | 54.8% | 54.8% |
| Stanton | Orange | 35 | 65 | 53.8% | 53.8% |
| Cupertino | Santa Clara | 59 | 111 | 53.2% | 53.2% |
| Long Beach | Los Angeles | 644 | 1,218 | 52.9% | 52.9% |
| Vista | San Diego | 100 | 189 | 52.9% | 52.9% |
| Santa Maria | Santa Barbara | 479 | 930 | 51.5% | 51.5% |
| Orange | Orange | 88 | 171 | 51.5% | 51.5% |
| Riverside | Riverside | 208 | 415 | 50.1% | 50.1% |
Includes places that permitted at least 50 homes in 2025 and where ADUs were more than half under both counting methods. Source: The Dwelling Index analysis of California HCD Annual Progress Report data, Table A2, checked Sept. 29, 2026.
Where were ADUs rare?
Some of the places that permitted the most homes overall permitted very few ADUs. Irvine permitted 1,409 homes in 2025, and 8 were ADUs.
Cities that permitted 500+ homes in 2025 with the lowest ADU shares
| City | County | ADU permits 2025 | All homes permitted 2025 | ADU share |
|---|---|---|---|---|
| Irvine | Orange | 8 | 1,409 | 0.6% |
| Merced | Merced | 3 | 505 | 0.6% |
| Elk Grove | Sacramento | 11 | 1,569 | 0.7% |
| Paradise | Butte | 4 | 511 | 0.8% |
| Murrieta | Riverside | 14 | 1,429 | 1.0% |
| Lathrop | San Joaquin | 13 | 821 | 1.6% |
| Source: The Dwelling Index analysis of California HCD Annual Progress Report data, Table A2, checked Sept. 29, 2026. | ||||
Why did the ADU share jump?
Two things happened at once. From 2022 to 2025, ADU permits rose 27.0%, from 25,492 to 32,363. Permits for every other kind of home fell 21.7%, from 116,648 to 91,363. ADUs grew, and the rest of the pie shrank.
Are more ADUs getting finished?
Yes. Cities and counties reported 22,699 ADUs finished in 2025, up 9.4% from 20,740 in 2024 and about seven times the 3,171 reported in 2018. From 2018 through 2025, they reported 102,260 ADUs finished and 172,376 permitted.
California reported 22,699 finished ADUs in 2025, up from 3,171 in 2018
Yearly counts of ADUs permitted and completed. The lines do not track the same set of homes.
The lines are separate yearly counts and do not track the same homes. A home completed in 2025 may have received its permit in an earlier year. These totals do not match individual homes.
Line chart: California ADU completions rose from 3,171 in 2018 to 22,699 in 2025, while ADU permits rose from 8,912 to 32,363. Source: California HCD APR data, Table A2.
Don't divide these two numbers to get a "finish rate." An ADU permitted in 2023 might be finished in 2025. Long Beach shows why: it reported 644 ADU permits and 649 finished ADUs in 2025. More finished than permitted: a home finished in 2025 may have received its permit in an earlier year. These totals do not match individual homes.
A few places report far fewer finished ADUs than permits across many years. Across their available 2018–2025 report years, Huntington Beach listed 513 ADU permits and no finished ADUs, Saratoga 467 and 4, Compton 170 and 11, and Huntington Park 115 and 6. The state file can't tell us whether those homes were finished and not reported, or aren't finished yet. We flag these rows in the data. The four-place check includes the counts, source and exact query.
Is California's ADU boom slowing down?
ADU permits grew 4.1% in 2025, the smallest yearly gain since 2020. Growth was 61.4% in 2021, 23.6% in 2022, 11.5% in 2023 and 9.3% in 2024. The 2025 total, 32,363, is still the highest in this data, which starts in 2018.
It's like a car that's still speeding up, just not as hard as before.
Where did ADU permits grow fastest?
Fastest-growing places for ADU permits, 2021 to 2025
| City | ADU permits 2021 | ADU permits 2025 | 2025 ÷ 2021 |
|---|---|---|---|
| Ontario | 11 | 154 | 14.0x |
| Inglewood | 26 | 147 | 5.7x |
| Coachella | 24 | 129 | 5.4x |
| Fresno | 19 | 101 | 5.3x |
| Simi Valley | 24 | 122 | 5.1x |
| Rancho Cucamonga | 16 | 81 | 5.1x |
Places with at least 50 ADU permits in 2025 and at least 10 in 2021. Source: The Dwelling Index analysis of California HCD Annual Progress Report data, Table A2, checked Sept. 29, 2026.
Where did ADU permits fall the most?
San Francisco is the big-city standout. It issued 483 ADU permits in 2019 and 171 in 2025.
Largest drops from each place's highest-count year, ADU permits
| City | Peak year | ADU permits in peak year | ADU permits 2025 | Change from peak |
|---|---|---|---|---|
| Santa Rosa | 2023 | 154 | 47 | -69% |
| San Francisco | 2019 | 483 | 171 | -65% |
| Temple City | 2024 | 176 | 69 | -61% |
| Sacramento County (unincorporated) | 2024 | 185 | 86 | -54% |
| Ventura County (unincorporated) | 2023 | 170 | 98 | -42% |
| Burbank | 2024 | 411 | 241 | -41% |
Places with 2025 Table A2 rows that permitted at least 150 ADUs in their highest-count year from 2018 to 2024. Source: The Dwelling Index analysis of California HCD Annual Progress Report data, Table A2, checked Sept. 29, 2026.
Which California counties permit the most ADUs?
Counting the available 2025 city and unincorporated-area records, Los Angeles County issued permits for 13,787 ADUs in 2025, 42.6% of California's total. San Diego County was second with 3,695 (11.4%), and Orange County was third with 2,310 (7.1%).
ADU permits by California county area, 2025
| County area | ADU permits 2025 | Share of state ADU permits | ADUs completed 2025 | ADU share of homes permitted (year issued / as filed) | Cities and county areas with 2025 rows |
|---|---|---|---|---|---|
| Los Angeles | 13,787 | 42.6% | 10,267 | 45.2% / 39.5% | 80 of 87 |
| San Diego | 3,695 | 11.4% | 1,592 | 27.8% / 27.7% | 19 of 19 |
| Orange | 2,310 | 7.1% | 1,704 | 38.5% / 35.2% | 34 of 34 |
| Santa Clara | 1,573 | 4.9% | 1,079 | 28.8% / 31.5% | 16 of 16 |
| San Bernardino | 1,229 | 3.8% | 921 | 18.5% / 17.2% | 24 of 25 |
| Riverside | 1,226 | 3.8% | 624 | 12.2% / 11.0% | 27 of 29 |
| Alameda | 1,059 | 3.3% | 813 | 27.2% / 28.0% | 15 of 15 |
| Santa Barbara | 968 | 3.0% | 642 | 41.7% / 42.6% | 9 of 9 |
| Ventura | 801 | 2.5% | 551 | 48.2% / 37.4% | 10 of 11 |
| San Mateo | 711 | 2.2% | 489 | 20.1% / 21.5% | 21 of 21 |
| Contra Costa | 582 | 1.8% | 413 | 32.4% / 28.0% | 19 of 20 |
| Sacramento | 552 | 1.7% | 386 | 7.7% / 7.7% | 8 of 8 |
| Monterey | 458 | 1.4% | 333 | 44.0% / 39.8% | 12 of 13 |
| San Luis Obispo | 278 | 0.9% | 205 | 36.1% / 30.4% | 8 of 8 |
| Stanislaus | 264 | 0.8% | 194 | 26.4% / 26.3% | 8 of 10 |
| Marin | 240 | 0.7% | 175 | 80.0% / 71.8% | 12 of 12 |
| Kern | 239 | 0.7% | 168 | 6.9% / 6.9% | 12 of 12 |
| Sonoma | 236 | 0.7% | 314 | 13.3% / 13.6% | 10 of 10 |
| Fresno | 232 | 0.7% | 116 | 7.5% / 7.3% | 14 of 16 |
| San Joaquin | 210 | 0.6% | 155 | 7.1% / 7.3% | 8 of 8 |
| Imperial | 179 | 0.6% | 107 | 41.7% / 36.5% | 7 of 8 |
| Placer | 174 | 0.5% | 135 | 6.2% / 6.3% | 6 of 7 |
| San Francisco | 171 | 0.5% | 218 | 8.7% / 8.7% | 1 of 1 |
| Santa Cruz | 146 | 0.5% | 180 | 22.0% / 22.6% | 5 of 5 |
| Tulare | 125 | 0.4% | 84 | 7.5% / 7.8% | 9 of 9 |
| Napa | 123 | 0.4% | 107 | 28.5% / 29.8% | 6 of 6 |
| Solano | 120 | 0.4% | 165 | 9.0% / 8.5% | 8 of 8 |
| El Dorado | 109 | 0.3% | 71 | 15.4% / 15.2% | 3 of 3 |
| Yolo | 82 | 0.3% | 57 | 20.8% / 10.7% | 5 of 5 |
| Nevada | 60 | 0.2% | 74 | 22.2% / 21.3% | 4 of 4 |
| Butte | 58 | 0.2% | 56 | 5.1% / 5.1% | 6 of 6 |
| Shasta | 55 | 0.2% | 53 | 18.7% / 18.5% | 4 of 4 |
| Merced | 44 | 0.1% | 13 | 4.7% / 3.4% | 6 of 7 |
| Humboldt | 41 | 0.1% | 72 | 13.9% / 18.5% | 8 of 8 |
| San Benito | 34 | 0.1% | 36 | 12.4% / 11.2% | 3 of 3 |
| Mendocino | 26 | 0.1% | 28 | 28.0% / 25.1% | 5 of 5 |
| Madera | 24 | 0.1% | 22 | 2.2% / 2.2% | 2 of 3 |
| Tehama | 20 | 0.1% | 8 | 21.7% / 22.3% | 2 of 3 |
| Kings | 14 | 0.0% | 7 | 2.9% / 2.9% | 5 of 5 |
| Mono | 13 | 0.0% | 6 | 22.8% / 22.8% | 2 of 2 |
| Yuba | 11 | 0.0% | 3 | 2.4% / 1.2% | 3 of 3 |
| Inyo | 10 | 0.0% | 2 | 58.8% / 40.0% | 2 of 2 |
| Plumas | 10 | 0.0% | 0 | 18.2% / 18.2% | 2 of 2 |
| Amador | 9 | 0.0% | 9 | 14.5% / 13.5% | 5 of 6 |
| Del Norte | 9 | 0.0% | 14 | 12.5% / 17.3% | 1 of 2 |
| Mariposa | 9 | 0.0% | 0 | 16.4% / 16.4% | 1 of 1 |
| Sutter | 7 | 0.0% | 8 | 1.9% / 1.9% | 3 of 3 |
| Lake | 6 | 0.0% | 2 | 4.7% / 4.3% | 3 of 3 |
| Tuolumne | 5 | 0.0% | 0 | 5.7% / 6.1% | 2 of 2 |
| Calaveras | 5 | 0.0% | 6 | 7.5% / 8.8% | 2 of 2 |
| Siskiyou | 5 | 0.0% | 2 | 10.0% / 5.9% | 5 of 10 |
| Lassen | 4 | 0.0% | 3 | 23.5% / 27.8% | 2 of 2 |
| Colusa | 3 | 0.0% | 3 | 4.9% / 4.9% | 3 of 3 |
| Modoc | 2 | 0.0% | 0 | 18.2% / 18.2% | 1 of 2 |
| Glenn | 0 | 0.0% | 2 | 0.0% / 0.0% | 2 of 3 |
| Alpine | 0 | 0.0% | 2 | 0.0% / 0.0% | 1 of 1 |
| Sierra | 0 | 0.0% | 0 | 0.0% / 0.0% | 1 of 1 |
| Trinity | 0 | 0.0% | 3 | 0.0% / 0.0% | 1 of 1 |
A county area adds up available city and unincorporated-area records with 2025 Table A2 rows (for example, 80 of the 87 Los Angeles County jurisdiction/county groups represented in the historical file). These coverage counts describe the file, not a complete list of legal jurisdictions. San Francisco is counted once as a city and county. Shares are rounded to one decimal; a small nonzero share can round to 0.0%. Source: The Dwelling Index analysis of California HCD Annual Progress Report data, Table A2, checked Sept. 29, 2026.
Does "Los Angeles County" include the City of Los Angeles?
It depends on which row you're reading. The county government's own row covers only the unincorporated area. The county-area total adds in cities with 2025 rows.
Three ways to count "Los Angeles" ADUs, 2025
| Geography | ADU permits 2025 | ADUs finished 2025 |
|---|---|---|
| City of Los Angeles | 7,451 | 5,883 |
| Los Angeles County, unincorporated area only | 1,361 | 811 |
| Los Angeles County area: cities with 2025 rows plus unincorporated area | 13,787 | 10,267 |
| Source: The Dwelling Index analysis of California HCD Annual Progress Report data, Table A2, checked Sept. 29, 2026. | ||
Never add the county-area total to its city rows. The cities are already inside it.
Why does adding up the state's file give a bigger number?
Add up the ADU building-permit column in the state's 2025 file and you get 41,851. But 9,488 of those units have a permit date outside 2025 (9,472) or no date at all (16). Counting only ADUs permitted in 2025 gives 32,363.
Here's why that happens. The state's reporting instructions tell cities that activity from prior years "may be included but is not required" (HCD reporting instructions). So some 2025 reports also list ADUs permitted in earlier years. Sum the column, and those homes can get counted again — like a school counting a student twice because they're on last year's roster and this year's.
Where the extra ADU units come from, 2025 reports
| City | ADU permits in 2025 report (as filed) | ADU permits issued in 2025 | Units dated outside 2025 or undated |
|---|---|---|---|
| Los Angeles | 12,332 | 7,451 | 4,881 |
| Fullerton | 589 | 168 | 421 |
| Lakewood | 498 | 99 | 399 |
| Glendale | 695 | 371 | 324 |
| Campbell | 340 | 52 | 288 |
| All of California | 41,851 | 32,363 | 9,488 |
| Source: The Dwelling Index analysis of California HCD Annual Progress Report data, Table A2, checked Sept. 29, 2026. | |||
Five cities account for 6,313 of the 9,488 extra units, about two-thirds. Los Angeles alone accounts for 4,881.
The date-matched counts are close to, but do not reproduce, HCD's published handbook totals. HCD's March 2026 ADU Handbook says California permitted 30,354 ADUs in 2024, more than 26.6% of all homes permitted (HCD ADU Handbook, March 2026). Our date-matched method gives 31,081 for 2024 in the September 25 file (26.1%), 2.4% higher. The handbook does not give the query and frozen data needed to show whether the difference comes from revisions, counting rules, or both.
Some of the older-dated units may be late entries rather than repeats. Those older-dated units were not permitted in 2025; the 16 undated units cannot be assigned to a permit year from the recorded date.
Why do these numbers matter now?
Every California city and county must send the state an Annual Progress Report by April 1 covering the year before, and HCD uses the building permits in those reports as its key yardstick for progress toward each place's state-assigned housing goal (HCD Annual Progress Reports). State law lets ADUs count toward that goal (HCD ADU Handbook, March 2026). That goal is called the Regional Housing Needs Allocation, or RHNA: the number of homes each city and county must plan for.
An ADU permit records permission to build, not a finished home. Issued permits help track progress toward the housing goal. When other home permitting falls, as it did from 2022 to 2025, ADUs can carry a larger share of that count.
The rules keep moving, too. In December 2025, HCD added an addendum to its ADU Handbook covering changes to state ADU law that took effect January 1, 2026 (HCD ADU Handbook page). HCD now also publishes a March 2026 handbook. Our plain-English guide to California's ADU rules walks through what's allowed.
Some readers are behind next year's numbers: homeowners thinking about an ADU of their own. After "Can I build one?" come "What will it cost?" and "How do I pay for it?" Start with what an ADU costs to build and how Californians pay for ADUs. For a quick read on your own lot, The Dwelling Index's free Check My Property tool is the place to start.
For numbers beyond California, see our ADU statistics page.
How we built this
We started with the state's own data and counted it one consistent way.
- Source. The California Department of Housing and Community Development (HCD) publishes cities' and counties' reported housing activity on the California Open Data Portal. We used Table A2, the building-activity table (922,507 rows, file last updated Sept. 25, 2026), and queried it on Sept. 29, 2026 through the portal's public data tool.
- What we counted. Housing units in the "ADU" category. A permit counts in a year only when its permit date falls in that report year. A finished ADU counts only when its certificate-of-occupancy or other-readiness date falls in that same report year. We counted all homes the same way, so every share compares like with like.
- Cities and counties. Each city and each county's unincorporated area stays its own row. County-area totals add them up once.
- Missing is not zero. A blank cell means the state file has no rows for that place in that year. A 0 means the place has Table A2 rows but no units met that column's ADU category and date rules. Neither a blank nor a zero proves nothing was built.
- Checks. The city and unincorporated-area rows add up exactly to the statewide totals for every year. We checked every published city-year count against a fresh total calculated from the state records. All eight yearly checks matched. We separately reran the statewide query and recomputed every share, change, rank, subset and county total. The exact queries and checks are in the reproduction files. Our method lands within 2.4% of HCD's published 2024 total (31,081 vs. 30,354) and within 5.6% of its January 2025 figure for 2023 (28,424 vs. 26,924), without enough detail in the handbooks to reconcile the differences. The San Francisco Chronicle's July 2026 analysis reported Hillsborough at 56 ADUs of 58 homes and Atherton at 45 of 60; our numbers are the same (San Francisco Chronicle).
- The majority rule. A place counts as ADU-majority if it permitted at least 50 homes in 2025 and ADUs were more than half under both counting methods. Here's how the count moves with the cutoff:
How the "ADUs were most homes permitted" count changes with the rules, 2025
| Places included | Count | ADUs were more than half (both methods) | Date-matched method | As-filed method |
|---|---|---|---|---|
| Cities and counties with 20+ homes permitted | 372 | 106 | 117 | 107 |
| Cities and counties with 50+ homes permitted (our headline rule) | 293 | 62 | 71 | 63 |
| Cities and counties with 100+ homes permitted | 211 | 34 | 40 | 35 |
| Cities only, 100+ homes permitted | 183 | 30 | 35 | 31 |
| Source: The Dwelling Index analysis of California HCD Annual Progress Report data, Table A2, checked Sept. 29, 2026. | ||||
- Coverage. The file contains 534 jurisdiction/county groups across the 2018–2025 report years. This is the file's coverage, not a complete legal-jurisdiction list. 503 have 2025 rows. These 31 have none for 2025: Alturas, Apple Valley, Azusa, Banning, Canyon Lake, Clayton, Colfax, Compton, Corning, Crescent City, Dorris, Dos Palos, Dunsmuir, Etna, Fort Jones, Glenn County (unincorporated), Hughson, Irwindale, Lawndale, Lynwood, Madera, Mount Shasta, Plymouth, Pomona, San Joaquin, Sand City, Sanger, Santa Paula, Turlock, West Covina, Westmorland.
- Undated units. 16 ADU units in the 2025 file had no permit date and are left out of the permit count. One completion unit had no readiness date and is left out of the completion count.
Anyone can rerun the statewide count at the portal's public data tool (data.ca.gov/api/3/action/datastore_search_sql):
``sql SELECT "YEAR", SUM(CASE WHEN "NO_BUILDING_PERMITS" ~ '^[0-9]+$' AND left("BP_ISSUE_DT1",4) = "YEAR" THEN "NO_BUILDING_PERMITS"::int ELSE 0 END) AS adu_permits, SUM(CASE WHEN "NO_OTHER_FORMS_OF_READINESS" ~ '^[0-9]+$' AND left("CO_ISSUE_DT1",4) = "YEAR" THEN "NO_OTHER_FORMS_OF_READINESS"::int ELSE 0 END) AS adu_completed FROM "fe505d9b-8c36-42ba-ba30-08bc4f34e022" WHERE "UNIT_CAT" = 'ADU' GROUP BY "YEAR" ORDER BY "YEAR"; ``
Remove the WHERE "UNIT_CAT" = 'ADU' line to count all homes. To reproduce the full city file, group all unit categories by "JURIS_NAME", "CNTY_NAME" and "YEAR", and put the ADU test inside each sum instead of filtering out non-ADU rows first. That keeps places that have housing rows but no ADU activity. Join those results to all jurisdiction/county groups seen in 2018–2025; leave absent years blank. The full aggregation query records the exact fields and checks. Our full research methodology covers our general standards.
What does this data show, and what doesn't it?
It shows reported ADU permitted units by city and county area for 2018–2025, city completions for 2024–2025, and statewide completions for 2018–2025, counted one consistent way.
It doesn't show every ADU that exists in California, or ADUs built without permits. It doesn't give a finish rate, because a permit and a finish often land in different years. It doesn't show cost, size, rent, or why one city permits more than another. We did not match individual projects or remove repeated events within a report year. An older permit first listed only in a later report is outside this date-matched series. Counts are gross reported units, not net additions after demolitions. Yearly changes can also reflect changes in which places report and how they fill in the form.
Cities and counties fill in these reports themselves, and HCD can revise the file. HCD notes that a year's data isn't complete until June 30 of the following year (HCD APR dashboard); these 2025 figures were checked after that date. The form has no separate category for junior ADUs (small units carved out of an existing home), so junior ADUs enter these counts only where the jurisdiction classified them as ADUs.
How to cite this page
Suggested Citation
Dwelling Index. (2026). California ADU permits and completions by city (2018–2025). Retrieved from https://dwellingindex.com/research/california-adu-permits/
Ready-to-copy citation:
The Dwelling Index. (2026, September 29). California ADU permits and completions by city (2018–2025). https://dwellingindex.com/research/california-adu-permits/. Data: California Department of Housing and Community Development, Housing Element Annual Progress Reports, Table A2 (file updated Sept. 25, 2026).
Ready-to-copy sentence:
California cities and counties reported 32,363 ADU housing units permitted in 2025, more than 1 in 4 homes permitted, according to The Dwelling Index's date-matched analysis of HCD Table A2 (source checked September 29, 2026).
To cite one city, use the Copy button on its row in the table; each row also has its own link.
You're welcome to reuse our original tables, charts and analysis with credit to The Dwelling Index, under CC BY 4.0. The underlying figures come from California HCD, so keep that credit too, and follow the state portal's terms for the raw data.
Download the data
Three free files, no sign-up:
- california-adu-permits-completions-by-city-2018-2025.csv — 534 cities and county areas, ADU permits 2018–2025, ADUs finished 2024–2025, 2025 shares under both counting methods, and data notes.
- california-adu-permits-statewide-by-year-2018-2025.csv — California totals by year.
- california-adu-permits-by-county-2025.csv — 58 county areas for 2025.
Chart files: permit-share chart, top-ten-city chart, and permits-and-completions chart. The reproduction files include the exact queries and source checks.
What the main columns mean
| Column | Meaning |
|---|---|
| adu_permits_YYYY | ADU housing units whose permit date matches that report year; blank = no Table A2 rows for that place that year |
| adu_completed_YYYY | ADU housing units whose certificate of occupancy or other readiness date matches that report year; city columns cover 2024–2025 |
| all_homes_permitted_2025 | All housing units permitted in 2025, same counting rule |
| adu_share_of_homes_permitted_2025_pct | ADU permits ÷ all homes permitted, 2025 |
| ..._as_filed | The same figure summed from everything in the 2025 report, including units dated in other years or undated |
| adu_majority_2025 | "yes" if the place permitted 50+ homes and ADUs were more than half under both methods |
| data_note | Plain-language flags for gaps or unusual filings |
Source for all files: The Dwelling Index analysis of California HCD Annual Progress Report data, Table A2, file updated Sept. 25, 2026, checked Sept. 29, 2026.
Frequently asked questions
How many ADUs were permitted in California in 2025?
California cities and counties issued permits for 32,363 ADUs in 2025, up 4.1% from 31,081 in 2024. That counts housing units whose permits were issued in 2025, as reported to the state.
What percent of new homes in California are ADUs?
ADUs were 26.2% of the homes permitted in California in 2025 (32,363 of 123,726) and 20.2% of the homes finished (22,699 of 112,286). In 2018, they were 7.8% of homes permitted.
Which California city issues the most ADU permits?
Los Angeles, with 7,451 ADU permits in 2025, or 23% of the state's total. San Diego was second with 2,165.
How many ADUs were finished in California in 2025?
Cities and counties reported 22,699 finished ADUs in 2025, up 9.4% from 20,740 in 2024. From 2018 through 2025, they reported 102,260.
Why do other sources give different numbers?
They can count a different year, stage or set of records. California YIMBY put ADUs at 19% of homes produced in 2022 (California YIMBY). The Terner Center used "about 20 percent" on November 13, 2025, citing that 2024 report—not a new 2026 count (Terner Center). About 20% can also describe a different stage: our 2025 completion share is 20.2%, while the permit share is 26.2%.
HCD's March 2026 handbook gives 30,354 permits for 2024; our date-matched count from the September 25 file is 31,081. We cannot establish the cause of that difference from the handbook. Summing the raw 2025 column gives 41,851 because it includes permits dated in other years and 16 undated units.
A February 2025 state Senate fact sheet said over 23,000 ADUs were completed in 2023 (California Senate Housing Committee). The September 25 APR file gives 17,724 when completion dates match the 2023 report year and 18,549 without that date filter. The fact sheet does not explain how its count was made, so these figures remain unreconciled.
Does this include junior ADUs?
The state's form has no separate category for junior ADUs, so junior ADUs enter these counts only where the jurisdiction classified them as ADUs. This page doesn't give a separate junior-ADU total.
Why does my city show no 2025 numbers?
31 cities and county areas have no 2025 rows in the state file as of Sept. 29, 2026. That means there are no Table A2 activity rows for that year. It does not establish that no APR was submitted or that nothing was built.
Can a city finish more ADUs than it permits in a year?
Yes. Long Beach reported 644 ADU permits and 649 finished ADUs in 2025. Permits and finishes are separate yearly counts, so a home finished in 2025 may have received its permit earlier. These counts do not match individual homes.
When will 2026 numbers come out?
Cities and counties must report 2026 activity by April 1, 2027 (HCD instructions), and HCD says a year's data isn't complete until June 30 of the next year (APR dashboard). We'll update this page when most places have 2026 rows in the state file.
Sources
- California Department of Housing and Community Development (HCD), Housing Element Annual Progress Report data, Table A2, California Open Data Portal. <https://data.ca.gov/dataset/housing-element-annual-progress-report-apr-data-by-jurisdiction-and-year/resource/fe505d9b-8c36-42ba-ba30-08bc4f34e022> — file updated Sept. 25, 2026; checked Sept. 29, 2026.
- HCD, Housing Element Annual Progress Report (APR) Data by Jurisdiction and Year (dataset page). <https://data.ca.gov/dataset/housing-element-annual-progress-report-apr-data-by-jurisdiction-and-year> — checked Sept. 29, 2026.
- HCD, Housing Element Annual Progress Report Instructions. <https://www.hcd.ca.gov/sites/default/files/docs/planning-and-community/housing-element-annual-progress-report-instructions.pdf> — checked Sept. 29, 2026.
- HCD, Annual Progress Reports – Data Dashboard and Downloads. <https://www.hcd.ca.gov/housing-open-data-tools/apr-dashboard> — checked Sept. 29, 2026.
- HCD, Annual Progress Reports. <https://www.hcd.ca.gov/apr> — checked Sept. 29, 2026.
- HCD, Accessory Dwelling Unit Handbook, March 2026. <https://www.hcd.ca.gov/sites/default/files/docs/policy-and-research/adu-handbook-update.pdf> — checked Sept. 29, 2026.
- HCD, Accessory Dwelling Unit Handbook, January 2025. <https://ahcd.assembly.ca.gov/system/files/2025-03/adu-handbook-update.pdf> — checked Sept. 29, 2026.
- HCD, Accessory Dwelling Unit Handbook (copy hosted by the Assembly Housing and Community Development Committee). <https://ahcd.assembly.ca.gov/system/files/2025-03/adu-handbook-update.pdf> — checked Sept. 29, 2026.
- HCD, ADU Handbook page (December 2025 addendum). <https://www.hcd.ca.gov/building-standards/adu/handbook> — checked Sept. 29, 2026.
- San Francisco Chronicle, "Wealthy Bay Area cities are making progress on housing goals via ADUs," July 26, 2026. <https://www.sfchronicle.com/realestate/article/adu-home-housing-hillsborough-atherton-22359055.php> — checked Sept. 29, 2026.
- Terner Center for Housing Innovation, California Housing Supply and Land Use Legislative Round-Up 2025, November 13, 2025. <https://ternercenter.berkeley.edu/research-and-policy/california-housing-supply-and-land-use-legislative-round-up-2025/> — checked Sept. 29, 2026.
- California Senate Housing Committee, recent legislative actions fact sheet, updated February 2025. <https://shou.senate.ca.gov/system/files/2025-02/recent-leg-actions-factsheet-updated-feb-2025.pdf> — checked Sept. 29, 2026.
- California YIMBY, "California ADU Reform: A Retrospective," 2024. <https://cayimby.org/reports/california-adu-reform-a-retrospective/> — checked Sept. 29, 2026.