Population By Race and Ethnicity in San Mateo County, CA in 2021
Based on the US Census Vintage data estimates, in 2021, the 739,060 population of San Mateo County, California comprised of 176,078 people who identified as Hispanic (23.83%), and 562,982 people who identified as Non-Hispanic (76.18%).
Race: The White Alone population was the largest racial group in San Mateo County, California with a population of 427,795 (57.88%); Asian Alone population was the second largest racial group with a population of 236,966 (32.06%); and Two Or More Races was the third largest racial group with a population of 36,961 (5%).
Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in San Mateo County, California in 2021, with a population of 276,364 (37.39%); the second largest ethnic group was Asian Alone - Non Hispanic with a population of 230,811 (31.23%); and the third largest ethnic group was White Alone - Hispanic with a population of 151,431 (20.49%).
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.
| Race | Population | Percentage |
|---|---|---|
| Black or African American Alone | 20,205 | 2.73% |
| White Alone | 427,795 | 57.88% |
| American Indian and Alaska Native Alone | 6,534 | 0.88% |
| Asian Alone | 236,966 | 32.06% |
| Native Hawaiian And Pacific Islander Alone | 10,599 | 1.43% |
| Two Or More Races | 36,961 | 5% |
| Ethnicity | Population | Percentage |
|---|---|---|
| Black or African American Alone - Hispanic | 3,847 | 0.52% |
| White Alone - Hispanic | 151,431 | 20.49% |
| American Indian and Alaska Native Alone - Hispanic | 5,501 | 0.74% |
| Asian Alone - Hispanic | 6,155 | 0.83% |
| Native Hawaiian And Pacific Islander Alone - Hispanic | 1,315 | 0.18% |
| Two Or More Races - Hispanic | 7,829 | 1.06% |
| Black or African American Alone - Non Hispanic | 16,358 | 2.21% |
| White Alone - Non Hispanic | 276,364 | 37.39% |
| American Indian and Alaska Native Alone - Non Hispanic | 1,033 | 0.14% |
| Asian Alone - Non Hispanic | 230,811 | 31.23% |
| Native Hawaiian And Pacific Islander Alone - Non Hispanic | 9,284 | 1.26% |
| Two Or More Races - Non Hispanic | 29,132 | 3.94% |