San Luis Obispo County, California Citizen Voting-age Population By Race and Ethnicity in 2020 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2020, the citizen voting-age population for San Luis Obispo County, CA was 220.31K. The Non-Hispanic White Alone ethnicity group had the highest citizen voting-age population (165.54K) and constituted 75.14% of the total.

The Hispanic or Latino of All Races ethnicity group had the second highest citizen voting-age population (36.40K) and constituted 16.52% of the total. The Non-Hispanic Asian Alone ethnicity group had the third highest (7.71K), constituting 3.50% 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 Luis Obispo County, California Citizen Voting-age Population By Race and Ethnicity in 2020

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

San Luis Obispo County, California Citizen Voting-age Population By Race and Ethnicity in 2020

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Ethnicity	Voting-age Population	% of Voting-age Pop.
Non-Hispanic White Alone	165540	75.14
Hispanic or Latino of All Races	36395	16.52
Non-Hispanic Asian Alone	7710	3.50
Non-Hispanic Two Or More Races	5020	2.28
Non-Hispanic Black or African American Alone	4385	1.99
Non-Hispanic American Indian and Alaska Native Alone	1065	0.48
Non-Hispanic Native Hawaiian And Pacific Islander Alone	200	0.09