Population By Race and Ethnicity in San Mateo County, CA in 2015

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2015, the 765,479 population of San Mateo County, California comprised of 189,886 people who identified as Hispanic (24.81%), and 575,593 people who identified as Non-Hispanic (75.19%).

Race: The White Alone population was the largest racial group in San Mateo County, California with a population of 472,649 (61.75%); Asian Alone population was the second largest racial group with a population of 216,809 (28.32%); and Two Or More Races was the third largest racial group with a population of 35,612 (4.65%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in San Mateo County, California in 2015, with a population of 307,641 (40.19%); the second largest ethnic group was Asian Alone - Non Hispanic with a population of 210,564 (27.51%); and the third largest ethnic group was White Alone - Hispanic with a population of 165,008 (21.56%).

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

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

See this for other years:
Hispanics and Non Hispanics in San Mateo County, CA in 2015
Total Population:
Race in San Mateo County, CA in 2015
Total Population:
Ethnicity in San Mateo County, CA in 2015
Total Population:
Population By Race in San Mateo , CA in 2015
Race Population Percentage
Black or African American Alone 21,847 2.85%
White Alone 472,649 61.75%
American Indian and Alaska Native Alone 6,596 0.86%
Asian Alone 216,809 28.32%
Native Hawaiian And Pacific Islander Alone 11,966 1.56%
Two Or More Races 35,612 4.65%
Population By Ethnicity in San Mateo , CA in 2015
Ethnicity Population Percentage
Black or African American Alone - Hispanic 3,786 0.5%
White Alone - Hispanic 165,008 21.56%
American Indian and Alaska Native Alone - Hispanic 5,422 0.71%
Asian Alone - Hispanic 6,245 0.82%
Native Hawaiian And Pacific Islander Alone - Hispanic 1,364 0.18%
Two Or More Races - Hispanic 8,061 1.05%
Black or African American Alone - Non Hispanic 18,061 2.36%
White Alone - Non Hispanic 307,641 40.19%
American Indian and Alaska Native Alone - Non Hispanic 1,174 0.15%
Asian Alone - Non Hispanic 210,564 27.51%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 10,602 1.39%
Two Or More Races - Non Hispanic 27,551 3.6%