California Citizen Voting-age Population By County in 2019 (ACS-5Yrs)
Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2019, the citizen voting-age population for California was 25,494,385 and represented 64.90% of the total California population.
Among all California counties, Los Angeles had the highest citizen voting-age population (6.32M), followed by San Diego (2.27M), and Orange (2.06M).
In terms of percentages, Amador had the highest percentage of its population being citizens of voting-age (82.49%), followed by Sierra (82.40%), and Tuolumne (81.81%).
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 | 6319285 | 62.68 |
| San Diego | 2265800 | 68.33 |
| Orange | 2060450 | 65.04 |
| Riverside | 1555775 | 64.52 |
| San Bernardino | 1364255 | 63.48 |
| Santa Clara | 1175130 | 60.97 |
| Alameda | 1083650 | 65.41 |
| Sacramento | 1041825 | 68.34 |
| Contra Costa | 761020 | 66.63 |
| San Francisco | 652450 | 74.57 |
| Fresno | 588880 | 59.81 |
| Ventura | 563240 | 66.48 |
| Kern | 521860 | 58.79 |
| San Mateo | 501485 | 65.35 |
| San Joaquin | 458995 | 61.81 |
| Sonoma | 357330 | 71.50 |
| Stanislaus | 339435 | 62.49 |
| Solano | 309100 | 69.96 |
| Placer | 285075 | 73.95 |
| Santa Barbara | 281935 | 63.38 |
| Tulare | 256925 | 55.62 |
| Monterey | 231870 | 53.50 |
| San Luis Obispo | 218760 | 77.53 |
| Santa Cruz | 192860 | 70.40 |
| Marin | 185230 | 71.26 |
| Butte | 173140 | 76.67 |
| Merced | 150155 | 55.33 |
| Yolo | 145880 | 67.12 |
| El Dorado | 143860 | 76.29 |
| Shasta | 136210 | 76.01 |
| Humboldt | 106325 | 78.22 |
| Imperial | 103885 | 57.49 |
| Napa | 95555 | 68.44 |
| Kings | 93190 | 61.84 |
| Madera | 91910 | 59.13 |
| Nevada | 80115 | 80.72 |
| Mendocino | 62190 | 71.30 |
| Sutter | 61220 | 63.70 |
| Yuba | 51020 | 66.82 |
| Lake | 47960 | 74.71 |
| Tehama | 45885 | 71.80 |
| Tuolumne | 44215 | 81.81 |
| San Benito | 38330 | 63.49 |
| Calaveras | 36845 | 80.95 |
| Siskiyou | 33760 | 77.66 |
| Amador | 31700 | 82.49 |
| Lassen | 25070 | 81.34 |
| Del Norte | 20580 | 74.85 |
| Glenn | 17300 | 61.84 |
| Plumas | 15230 | 81.62 |
| Mariposa | 14100 | 80.94 |
| Inyo | 13605 | 75.69 |
| Colusa | 12365 | 57.63 |
| Trinity | 10225 | 80.51 |
| Mono | 9865 | 68.94 |
| Modoc | 6765 | 75.97 |
| Sierra | 2505 | 82.40 |
| Alpine | 815 | 78.36 |
