California Citizen Voting-age Population By County in 2022 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2022, the citizen voting-age population for California was 26,078,140 and represented 66.26% of the total California population.

Among all California counties, Los Angeles had the highest citizen voting-age population (6.41M), followed by San Diego (2.31M), and Orange (2.13M).

In terms of percentages, Sierra had the highest percentage of its population being citizens of voting-age (83.88%), followed by Amador (82.50%), and Plumas (81.37%).

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.

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California Citizen Voting-age Population By County in 2022
California Citizen Voting-age Population By County in 2022
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County Citizen Voting-age Population % of County Population
Los Angeles 6410095 64.51
San Diego 2304925 70.07
Orange 2127355 67.00
Riverside 1610450 66.29
San Bernardino 1406300 64.49
Santa Clara 1176135 61.36
Alameda 1104010 66.35
Sacramento 1095810 69.39
Contra Costa 791470 68.08
San Francisco 633650 74.46
Fresno 624635 61.95
Ventura 573110 68.07
Kern 543555 59.94
San Mateo 502615 66.64
San Joaquin 487135 62.50
Sonoma 354880 72.66
Stanislaus 349335 63.28
Solano 318515 70.63
Placer 301335 74.11
Santa Barbara 287625 64.60
Tulare 268455 56.70
Monterey 241250 55.13
San Luis Obispo 220680 78.34
Santa Cruz 193475 72.04
Marin 188120 72.22
Butte 163370 76.48
Merced 158800 56.25
Yolo 149865 69.02
El Dorado 147070 76.71
Shasta 138510 76.17
Humboldt 106755 78.42
Imperial 103945 57.88
Napa 96315 70.11
Kings 95475 62.60
Madera 94435 60.06
Nevada 81715 79.86
Mendocino 66235 72.67
Sutter 63935 64.52
Yuba 55535 67.97
Lake 50220 73.83
Tehama 46600 71.16
Tuolumne 44720 81.32
San Benito 41830 64.60
Calaveras 36995 81.00
Siskiyou 34190 77.62
Amador 33475 82.50
Lassen 25095 78.73
Del Norte 20655 75.22
Glenn 18545 64.72
Plumas 15990 81.37
Inyo 14335 76.13
Mariposa 13470 78.63
Trinity 12720 80.05
Colusa 12605 57.80
Mono 9445 71.44
Modoc 6785 78.44
Sierra 2445 83.88
Alpine 1150 75.91