Population By Race and Ethnicity in San Mateo County, CA in 2019

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2019, the 764,810 population of San Mateo County, California comprised of 182,566 people who identified as Hispanic (23.87%), and 582,244 people who identified as Non-Hispanic (76.13%).

Race: The White Alone population was the largest racial group in San Mateo County, California with a population of 452,173 (59.12%); Asian Alone population was the second largest racial group with a population of 235,795 (30.83%); and Two Or More Races was the third largest racial group with a population of 37,677 (4.93%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in San Mateo County, California in 2019, with a population of 294,785 (38.54%); the second largest ethnic group was Asian Alone - Non Hispanic with a population of 229,522 (30.01%); and the third largest ethnic group was White Alone - Hispanic with a population of 157,388 (20.58%).

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 2019
Total Population:
Race in San Mateo County, CA in 2019
Total Population:
Ethnicity in San Mateo County, CA in 2019
Total Population:
Population By Race in San Mateo , CA in 2019
Race Population Percentage
Black or African American Alone 21,152 2.77%
White Alone 452,173 59.12%
American Indian and Alaska Native Alone 6,696 0.88%
Asian Alone 235,795 30.83%
Native Hawaiian And Pacific Islander Alone 11,317 1.48%
Two Or More Races 37,677 4.93%
Population By Ethnicity in San Mateo , CA in 2019
Ethnicity Population Percentage
Black or African American Alone - Hispanic 3,834 0.5%
White Alone - Hispanic 157,388 20.58%
American Indian and Alaska Native Alone - Hispanic 5,586 0.73%
Asian Alone - Hispanic 6,273 0.82%
Native Hawaiian And Pacific Islander Alone - Hispanic 1,397 0.18%
Two Or More Races - Hispanic 8,088 1.06%
Black or African American Alone - Non Hispanic 17,318 2.26%
White Alone - Non Hispanic 294,785 38.54%
American Indian and Alaska Native Alone - Non Hispanic 1,110 0.14%
Asian Alone - Non Hispanic 229,522 30.01%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 9,920 1.3%
Two Or More Races - Non Hispanic 29,589 3.87%