Population By Race and Ethnicity in San Luis Obispo County, CA in 2021

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2021, the 279,298 population of San Luis Obispo County, California comprised of 66,535 people who identified as Hispanic (23.82%), and 212,763 people who identified as Non-Hispanic (76.18%).

Race: The White Alone population was the largest racial group in San Luis Obispo County, California with a population of 247,523 (88.62%); Asian Alone population was the second largest racial group with a population of 11,518 (4.12%); and Two Or More Races was the third largest racial group with a population of 10,439 (3.74%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in San Luis Obispo County, California in 2021, with a population of 188,938 (67.65%); the second largest ethnic group was White Alone - Hispanic with a population of 58,585 (20.98%); and the third largest ethnic group was Asian Alone - Non Hispanic with a population of 10,356 (3.71%).

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 2021
Total Population:
Race in San Luis Obispo County, CA in 2021
Total Population:
Ethnicity in San Luis Obispo County, CA in 2021
Total Population:
Population By Race in San Luis Obispo , CA in 2021
Race Population Percentage
Black or African American Alone 5,272 1.89%
White Alone 247,523 88.62%
American Indian and Alaska Native Alone 4,012 1.44%
Asian Alone 11,518 4.12%
Native Hawaiian And Pacific Islander Alone 534 0.19%
Two Or More Races 10,439 3.74%
Population By Ethnicity in San Luis Obispo , CA in 2021
Ethnicity Population Percentage
Black or African American Alone - Hispanic 901 0.32%
White Alone - Hispanic 58,585 20.98%
American Indian and Alaska Native Alone - Hispanic 2,713 0.97%
Asian Alone - Hispanic 1,162 0.42%
Native Hawaiian And Pacific Islander Alone - Hispanic 160 0.06%
Two Or More Races - Hispanic 3,014 1.08%
Black or African American Alone - Non Hispanic 4,371 1.57%
White Alone - Non Hispanic 188,938 67.65%
American Indian and Alaska Native Alone - Non Hispanic 1,299 0.47%
Asian Alone - Non Hispanic 10,356 3.71%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 374 0.13%
Two Or More Races - Non Hispanic 7,425 2.66%