U.S. PLACE PROFILE
San Mateo, CA
San Mateo is a City in San Mateo County, California. The loaded 2025 population estimate is 103,337.
Published locationCalifornia
Population estimate103,3372025 loaded Census estimate
CountySan Mateo CountyPrimary loaded county
Place typeCityCensus place classification
Coordinates37.56031, -122.31060Census representative point
EXPLORE FROM SAN MATEO
Distance and nearby-place tools
Only tools with enough qualifying stored data are linked below.
Closest published places
Nearest qualifying Census places by straight-line distance.
Hillsborough, CA2.6 miles · W
Belmont, CA3.3 miles · S→Foster City, CA3.3 miles · E→Burlingame, CA3.5 miles · NW→San Carlos, CA4.8 miles · SE→Millbrae, CA5.7 miles · NW
County coverage
Some incorporated places cross county lines. These county-part values come from the loaded Census county-place-part population layer.
| County | 2025 population in this place part |
|---|---|
| San Mateo County | 103,337 |
DATA COVERAGE
What is available for San Mateo
Geographic identityNearby placesPopulation estimate100-mile radius25-mile radius50-mile radius
PRIMARY GEOGRAPHIC SOURCE
U.S. Census Bureau
Place identity, coordinates and geographic identifiers are tied to the loaded Census source record for this location.