Sonoma County, California Citizen Voting-age Population By Race and Ethnicity in 2021 (ACS-5Yrs)

Updated on March 26, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2021, the citizen voting-age population for Sonoma County, CA was 355.36K. The Non-Hispanic White Alone ethnicity group had the highest citizen voting-age population (260.66K) and constituted 73.35% of the total.

The Hispanic or Latino of All Races ethnicity group had the second highest citizen voting-age population (62.49K) and constituted 17.59% of the total. The Non-Hispanic Asian Alone ethnicity group had the third highest (14.32K), constituting 4.03% of the total citizen voting-age population.

The charts and tables below shows the citizen voting-age population and percentages by race and ethnicity.

You can also see similar information for other California counties, and for California.

See this for other years:
Sonoma County, California Citizen Voting-age Population By Race and Ethnicity in 2021
Non-Hispanic White Alone
Hispanic or Latino of All Races
Non-Hispanic Asian Alone
Non-Hispanic Two Or More Races
Non-Hispanic Black Alone
Non-Hispanic American Indian & Alaska Native Alone
Non-Hispanic Native Hawaiian & Pac. Islander Alone
Sonoma County, California Citizen Voting-age Population By Race and Ethnicity in 2021
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Ethnicity Voting-age Population % of Voting-age Pop.
Non-Hispanic White Alone 260660 73.35
Hispanic or Latino of All Races 62490 17.59
Non-Hispanic Asian Alone 14320 4.03
Non-Hispanic Two Or More Races 10635 2.99
Non-Hispanic Black or African American Alone 5075 1.43
Non-Hispanic American Indian and Alaska Native Alone 1465 0.41
Non-Hispanic Native Hawaiian And Pacific Islander Alone 710 0.20