San Mateo, California Voting-age Population By Race in Census 2020
Updated on February 22, 2026.
According to the data from the US 2020 decennial Census, in April 2020, among San Mateo, CA voting-age population of 610,236 people, 41.05% of them (250,478 people) identified their race as White Alone, 31.10% of them (189,810 people) identified their race as Asian Alone, and 13.26% of them (80,934 people) identified their race as Some Other Race Alone.
The first chart below shows the voting-age population by race and the second chart shows the percentage of the the San Mateo, CA voting-age population for each race. You can also find the information in a table below.
You can see similar information for other California counties and also for the state of California.
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Data Source: US Census Bureau, 2020 Census.
San Mateo, CA Voting-age Population By Race in Census 2020
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| Race | Voting-age Population | % of County Voting-age Population |
|---|---|---|
| Black or African American Alone | 13447 | 2.20 |
| White Alone | 250478 | 41.05 |
| American Indian and Alaska Native Alone | 5284 | 0.87 |
| Asian Alone | 189810 | 31.10 |
| Native Hawaiian And Pacific Islander Alone | 7202 | 1.18 |
| Some Other Race Alone | 80934 | 13.26 |
| Two Or More Races | 63081 | 10.34 |