Population By Race and Ethnicity in San Luis Obispo County, CA in 2020

Updated on July 31, 2024.

Based on the US Census Vintage data estimates, in 2020, the 281,884 population of San Luis Obispo County, California comprised of 68,010 people who identified as Hispanic (24.13%), and 213,874 people who identified as Non-Hispanic (75.87%).

Race: The White Alone population was the largest racial group in San Luis Obispo County, California with a population of 250,164 (88.75%); Asian Alone population was the second largest racial group with a population of 11,400 (4.04%); and Two Or More Races was the third largest racial group with a population of 10,334 (3.67%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in San Luis Obispo County, California in 2020, with a population of 190,031 (67.42%); the second largest ethnic group was White Alone - Hispanic with a population of 60,133 (21.33%); and the third largest ethnic group was Asian Alone - Non Hispanic with a population of 10,259 (3.64%).

The charts and tables below shows the population and percentage of each racial and ethnicity group in San Luis Obispo, California.

You can find similar information for other California counties, and for California.

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Hispanics and Non Hispanics in San Luis Obispo County, CA in 2020
Total Population:
Race in San Luis Obispo County, CA in 2020
Total Population:
Ethnicity in San Luis Obispo County, CA in 2020
Total Population:
Population By Race in San Luis Obispo , CA in 2020
Race Population Percentage
Black or African American Alone 5,380 1.91%
White Alone 250,164 88.75%
American Indian and Alaska Native Alone 4,083 1.45%
Asian Alone 11,400 4.04%
Native Hawaiian And Pacific Islander Alone 523 0.19%
Two Or More Races 10,334 3.67%
Population By Ethnicity in San Luis Obispo , CA in 2020
Ethnicity Population Percentage
Black or African American Alone - Hispanic 871 0.31%
White Alone - Hispanic 60,133 21.33%
American Indian and Alaska Native Alone - Hispanic 2,758 0.98%
Asian Alone - Hispanic 1,141 0.41%
Native Hawaiian And Pacific Islander Alone - Hispanic 151 0.05%
Two Or More Races - Hispanic 2,956 1.05%
Black or African American Alone - Non Hispanic 4,509 1.6%
White Alone - Non Hispanic 190,031 67.42%
American Indian and Alaska Native Alone - Non Hispanic 1,325 0.47%
Asian Alone - Non Hispanic 10,259 3.64%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 372 0.13%
Two Or More Races - Non Hispanic 7,378 2.62%