Population By Race and Ethnicity in Contra Costa County, CA in 2010

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2010, the 1,052,516 population of Contra Costa County, California comprised of 256,796 people who identified as Hispanic (24.4%), and 795,720 people who identified as Non-Hispanic (75.6%).

Race: The White Alone population was the largest racial group in Contra Costa County, California with a population of 726,156 (68.99%); Asian Alone population was the second largest racial group with a population of 157,929 (15.01%); and Black or African American Alone was the third largest racial group with a population of 102,510 (9.74%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Contra Costa County, California in 2010, with a population of 503,812 (47.87%); the second largest ethnic group was White Alone - Hispanic with a population of 222,344 (21.13%); and the third largest ethnic group was Asian Alone - Non Hispanic with a population of 151,843 (14.43%).

The charts and tables below shows the population and percentage of each racial and ethnicity group in Contra Costa, California.

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

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Hispanics and Non Hispanics in Contra Costa County, CA in 2010
Total Population:
Race in Contra Costa County, CA in 2010
Total Population:
Ethnicity in Contra Costa County, CA in 2010
Total Population:
Population By Race in Contra Costa , CA in 2010
Race Population Percentage
Black or African American Alone 102,510 9.74%
White Alone 726,156 68.99%
American Indian and Alaska Native Alone 10,325 0.98%
Asian Alone 157,929 15.01%
Native Hawaiian And Pacific Islander Alone 5,910 0.56%
Two Or More Races 49,686 4.72%
Population By Ethnicity in Contra Costa , CA in 2010
Ethnicity Population Percentage
Black or African American Alone - Hispanic 7,733 0.74%
White Alone - Hispanic 222,344 21.13%
American Indian and Alaska Native Alone - Hispanic 7,275 0.69%
Asian Alone - Hispanic 6,086 0.58%
Native Hawaiian And Pacific Islander Alone - Hispanic 1,338 0.13%
Two Or More Races - Hispanic 12,020 1.14%
Black or African American Alone - Non Hispanic 94,777 9.01%
White Alone - Non Hispanic 503,812 47.87%
American Indian and Alaska Native Alone - Non Hispanic 3,050 0.29%
Asian Alone - Non Hispanic 151,843 14.43%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 4,572 0.43%
Two Or More Races - Non Hispanic 37,666 3.58%