California Citizen Voting-age Population By County in 2024 (ACS-5Yrs)
Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2024, the citizen voting-age population for California was 26,132,799 and represented 66.52% of the total California population.
Among all California counties, Los Angeles had the highest citizen voting-age population (6.40M), followed by San Diego (2.32M), and Orange (2.13M).
In terms of percentages, Amador had the highest percentage of its population being citizens of voting-age (82.38%), followed by Sierra (82.10%), and Plumas (81.47%).
The chart and table below shows the citizen voting-age population of each county and the percentage of each county's population that were citizens of voting-age.
You can see similar information for other states and by state for the United States.
| County | Citizen Voting-age Population | % of County Population |
|---|---|---|
| Los Angeles | 6394560 | 65.19 |
| San Diego | 2315394 | 70.40 |
| Orange | 2130945 | 67.31 |
| Riverside | 1654262 | 66.74 |
| San Bernardino | 1425320 | 64.87 |
| Santa Clara | 1164887 | 61.24 |
| Sacramento | 1104256 | 69.28 |
| Alameda | 1083582 | 65.69 |
| Contra Costa | 792622 | 68.04 |
| Fresno | 633991 | 62.36 |
| San Francisco | 616394 | 74.24 |
| Ventura | 573446 | 68.47 |
| Kern | 550337 | 60.14 |
| San Joaquin | 499410 | 62.64 |
| San Mateo | 494554 | 66.62 |
| Sonoma | 352389 | 72.65 |
| Stanislaus | 349960 | 63.17 |
| Solano | 316980 | 70.14 |
| Placer | 311090 | 74.22 |
| Santa Barbara | 288340 | 64.99 |
| Tulare | 273831 | 57.20 |
| Monterey | 241736 | 55.24 |
| San Luis Obispo | 219609 | 78.00 |
| Santa Cruz | 191057 | 72.12 |
| Marin | 185340 | 71.85 |
| Merced | 166079 | 57.23 |
| Butte | 157637 | 75.81 |
| Yolo | 154295 | 69.96 |
| El Dorado | 148458 | 77.06 |
| Shasta | 138243 | 76.19 |
| Humboldt | 105903 | 78.72 |
| Imperial | 103601 | 57.49 |
| Madera | 97627 | 60.66 |
| Napa | 96043 | 71.21 |
| Kings | 93805 | 61.19 |
| Nevada | 81581 | 79.61 |
| Mendocino | 65431 | 72.51 |
| Sutter | 64188 | 64.93 |
| Yuba | 57584 | 68.14 |
| Lake | 49770 | 73.03 |
| Tehama | 45658 | 70.06 |
| Tuolumne | 44316 | 81.31 |
| San Benito | 43074 | 64.01 |
| Calaveras | 37029 | 80.07 |
| Amador | 34130 | 82.38 |
| Siskiyou | 33874 | 77.93 |
| Lassen | 23317 | 76.81 |
| Del Norte | 20599 | 75.99 |
| Glenn | 17611 | 61.80 |
| Plumas | 15821 | 81.47 |
| Inyo | 14190 | 75.74 |
| Mariposa | 13315 | 77.94 |
| Trinity | 12915 | 81.43 |
| Colusa | 12676 | 57.66 |
| Mono | 9616 | 73.13 |
| Modoc | 6607 | 76.83 |
| Sierra | 2256 | 82.10 |
| Alpine | 1273 | 78.68 |
