San Diego 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 San Diego County, CA was 2.29M. The Non-Hispanic White Alone ethnicity group had the highest citizen voting-age population (1.20M) and constituted 52.45% of the total.

The Hispanic or Latino of All Races ethnicity group had the second highest citizen voting-age population (629.71K) and constituted 27.54% of the total. The Non-Hispanic Asian Alone ethnicity group had the third highest (248.81K), constituting 10.88% 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.

Data Source: US Census - ACS 5-Years (CVAP).

See this for other years:

San Diego 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 Black Alone

Non-Hispanic Two Or More Races

Non-Hispanic Native Hawaiian & Pac. Islander Alone

Non-Hispanic American Indian & Alaska Native Alone

San Diego 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	1199300	52.45
Hispanic or Latino of All Races	629710	27.54
Non-Hispanic Asian Alone	248805	10.88
Non-Hispanic Black or African American Alone	117820	5.15
Non-Hispanic Two Or More Races	72020	3.15
Non-Hispanic Native Hawaiian And Pacific Islander Alone	10160	0.44
Non-Hispanic American Indian and Alaska Native Alone	8570	0.38