Race, Diversity, and Ethnicity in San Mateo County, CA

The map below shows majority race by area in San Mateo County, as self-identified on the US census. Darker shades indicate a larger racial majority in that neighborhood. This page also contains data and maps on San Mateo County racial diversity and diversity scores. Click here to scroll to diversity data.

San Mateo County, CA map of race and ethnicity
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White
Hispanic
Black
Asian
Multiple/Other
WhiteHispanicBlackAsianMultiple/Other
Majority race by area

The majority race in San Mateo County overall is white, making up 39.8% of residents. The next most-common racial group is asian at 29.6%. There are more white people in the west areas of the county. People who identify as asian are most likely to be living in the northwest places. The data below shows how many people identify themselves as each of the following races, which most Americans base on their family's national origin:

Race in San Mateo County
Race
San Mateo County, CA Population
White
39.8%
Hispanic
22.3%
Black
2.0%
Asian
29.6%
Native American
0.2%
Other
6.1%
 

Racial Distribution Key

White
Hispanic
Black
Asian
Native American
Other
 
Self-Identified Race
San Mateo County, CA Population
White
39.8%
Hispanic
22.3%
Black
2.0%
Asian
29.6%
Native American
0.2%
Other
6.1%
   

Diversity and Diversity Scores for San Mateo County, CA

The map below shows diversity in San Mateo County. Areas in green are more diverse, while areas in red are much less diverse. Diversity, in this case, means a mixture of people with different race and ethnicity living close to one another. For example, all-black and all-white areas in the county would both be considered lacking diversity.

San Mateo County, CA map of race and ethnicity
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Diversity Score

Diverse
Moderately diverse
No diversity
 

San Mateo County Diversity Score

98

With a diversity score of 98 out of 100, San Mateo County is much more diverse than other US counties. The most diverse area within San Mateo County's proper boundaries is to the central of the county. The least diverse areas are located in the west parts of San Mateo County.

Data Sources: U.S. Census, proprietary data mapping and analysis. Special thanks to the University of Virginia.

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