San Diego County, California Citizen Voting-age Population By Race and Ethnicity in 2018 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2018, the citizen voting-age population for San Diego County, CA was 2.24M. The Non-Hispanic White Alone ethnicity group had the highest citizen voting-age population (1.23M) and constituted 55.01% of the total.

The Hispanic or Latino of All Races ethnicity group had the second highest citizen voting-age population (568.86K) and constituted 25.43% of the total. The Non-Hispanic Asian Alone ethnicity group had the third highest (238.21K), constituting 10.65% 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 2018

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 2018

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Ethnicity	Voting-age Population	% of Voting-age Pop.
Non-Hispanic White Alone	1230665	55.01
Hispanic or Latino of All Races	568860	25.43
Non-Hispanic Asian Alone	238205	10.65
Non-Hispanic Black or African American Alone	118320	5.29
Non-Hispanic Two Or More Races	60980	2.73
Non-Hispanic Native Hawaiian And Pacific Islander Alone	10460	0.47
Non-Hispanic American Indian and Alaska Native Alone	9815	0.44