San Mateo, California Map and Directory
The Census Bureau estimates that San Mateo had about 104,748 residents in 2017, which is approximately 8,635 people per square mile of land area.
According to recent American Community Survey data, San Mateo had 38,011 total estimated households and the median household income was about $90,087 per year.
The California counties map at upper right shows San Mateo County, highlighted in red. Use the menu below to display interactive maps of San Mateo, either in a frame on this page or in full-screen mode.
Use the menu below to display categorized San Mateo directories.
Nearby California Cities and Towns *
* Parenthesized numbers indicate economic activity levels.
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