Where to vote: California voter lookup (state election office).
Registered voters, 2008-2024
EAVS counts, every two years.
Survey estimate: reported registration, 1972-2024
Current Population Survey: adults who said they were registered.
By county, 2024
EAVS 2024 by county-equivalent; citizens 18+ from the Census Bureau's 2020-2024 estimate.
| County | Registered | Active | Inactive | Citizens 18+ | Active, % of citizens 18+ |
|---|---|---|---|---|---|
| Alameda County | 1,096,859 | 960,007 | 136,852 | 1,083,582 | 88.6% |
| Alpine County | 1,181 | 974 | 207 | 1,273 | 76.5% |
| Amador County | 28,344 | 26,906 | 1,438 | 34,130 | 78.8% |
| Butte County | 152,776 | 127,998 | 24,778 | 157,637 | 81.2% |
| Calaveras County | 38,014 | 33,710 | 4,304 | 37,029 | 91.0% |
| Colusa County | 11,198 | 10,768 | 430 | 12,676 | 84.9% |
| Contra Costa County | 789,340 | 732,340 | 57,000 | 792,622 | 92.4% |
| Del Norte County | 19,469 | 15,013 | 4,456 | 20,599 | 72.9% |
| El Dorado County | 149,281 | 138,274 | 11,007 | 148,458 | 93.1% |
| Fresno County | 613,741 | 525,065 | 88,676 | 633,991 | 82.8% |
| Glenn County | 15,969 | 14,314 | 1,655 | 17,611 | 81.3% |
| Humboldt County | 102,109 | 83,897 | 18,212 | 105,903 | 79.2% |
| Imperial County | 119,053 | 86,841 | 32,212 | 103,601 | 83.8% |
| Inyo County | 12,445 | 10,772 | 1,673 | 14,190 | 75.9% |
| Kern County | 505,590 | 464,737 | 40,853 | 550,337 | 84.4% |
| Kings County | 78,919 | 66,256 | 12,663 | 93,805 | 70.6% |
| Lake County | 48,271 | 37,934 | 10,337 | 49,770 | 76.2% |
| Lassen County | 17,570 | 15,234 | 2,336 | 23,317 | 65.3% |
| Los Angeles County | 6,290,572 | 5,760,725 | 529,847 | 6,394,560 | 90.1% |
| Madera County | 84,219 | 80,089 | 4,130 | 97,627 | 82.0% |
| Marin County | 191,596 | 174,698 | 16,898 | 185,340 | 94.3% |
| Mariposa County | 13,233 | 11,767 | 1,466 | 13,315 | 88.4% |
| Mendocino County | 60,657 | 54,639 | 6,018 | 65,431 | 83.5% |
| Merced County | 159,639 | 134,661 | 24,978 | 166,079 | 81.1% |
| Modoc County | 6,392 | 5,129 | 1,263 | 6,607 | 77.6% |
| Mono County | 9,175 | 7,816 | 1,359 | 9,616 | 81.3% |
| Monterey County | 232,769 | 214,883 | 17,886 | 241,736 | 88.9% |
| Napa County | 91,759 | 85,951 | 5,808 | 96,043 | 89.5% |
| Nevada County | 91,682 | 75,626 | 16,056 | 81,581 | 92.7% |
| Orange County | 2,190,802 | 1,902,064 | 288,738 | 2,130,945 | 89.3% |
| Placer County | 319,375 | 295,691 | 23,684 | 311,090 | 95.0% |
| Plumas County | 18,559 | 13,834 | 4,725 | 15,821 | 87.4% |
| Riverside County | 1,709,363 | 1,406,690 | 302,673 | 1,654,262 | 85.0% |
| Sacramento County | 1,020,531 | 907,410 | 113,121 | 1,104,256 | 82.2% |
| San Benito County | 39,465 | 38,459 | 1,006 | 43,074 | 89.3% |
| San Bernardino County | 1,439,146 | 1,196,235 | 242,911 | 1,425,320 | 83.9% |
| San Diego County | 2,228,462 | 1,994,663 | 233,799 | 2,315,394 | 86.1% |
| San Francisco County | 596,864 | 535,459 | 61,405 | 616,394 | 86.9% |
| San Joaquin County | 436,112 | 392,755 | 43,357 | 499,410 | 78.6% |
| San Luis Obispo County | 209,304 | 186,512 | 22,792 | 219,609 | 84.9% |
| San Mateo County | 471,083 | 444,652 | 26,431 | 494,554 | 89.9% |
| Santa Barbara County | 266,852 | 250,270 | 16,582 | 288,340 | 86.8% |
| Santa Clara County | 1,134,366 | 1,064,954 | 69,412 | 1,164,887 | 91.4% |
| Santa Cruz County | 220,695 | 175,080 | 45,615 | 191,057 | 91.6% |
| Shasta County | 147,390 | 117,551 | 29,839 | 138,243 | 85.0% |
| Sierra County | 2,326 | 2,240 | 86 | 2,256 | 99.3% |
| Siskiyou County | 32,115 | 27,966 | 4,149 | 33,874 | 82.6% |
| Solano County | 297,743 | 269,515 | 28,228 | 316,980 | 85.0% |
| Sonoma County | 358,631 | 313,675 | 44,956 | 352,389 | 89.0% |
| Stanislaus County | 381,632 | 292,333 | 89,299 | 349,960 | 83.5% |
| Sutter County | 61,437 | 54,149 | 7,288 | 64,188 | 84.4% |
| Tehama County | 44,143 | 38,062 | 6,081 | 45,658 | 83.4% |
| Trinity County | 9,101 | 7,565 | 1,536 | 12,915 | 58.6% |
| Tulare County | 238,783 | 223,642 | 15,141 | 273,831 | 81.7% |
| Tuolumne County | 39,235 | 35,554 | 3,681 | 44,316 | 80.2% |
| Ventura County | 579,534 | 525,089 | 54,445 | 573,446 | 91.6% |
| Yolo County | 148,615 | 123,431 | 25,184 | 154,295 | 80.0% |
| Yuba County | 47,111 | 44,078 | 3,033 | 57,584 | 76.5% |
About these figures
Counts are what state election offices report to the US Election Assistance Commission (EAVS) after each November election; questions and state practice change between years. The share is active voters over the Census Bureau's citizen voting-age population estimate (CVAP). The survey line is self-reported (Current Population Survey) and kept separate from the office counts.
California registers voters by party; its figures are not yet collected here.
The AVR mark is the year automatic voter registration began in California, from the Brennan Center's list.
Registration counts: US Election Assistance Commission, Election Administration and Voting Survey 2008-2024 (public domain).
Citizen voting-age population: US Census Bureau, CVAP special tabulation, 2020-2024 ACS (public domain). Survey estimate: US Census Bureau, Current Population Survey voting and registration tables A-5b and A-3b (public domain).
PollCheck US. Data through November 5, 2026. Photo credits