Map of San Mateo, California, United States
San Mateo is a city in California, United States, with a population of about 103,536. It lies at 37.5630°N, 122.3255°W, about 13 m above sea level. San Mateo is about 3,918 km (2,434 mi) west of Washington, D.C., the capital. The nearest city on our map is Foster City, 5 km to the east.
San Mateo at a glance
Country
Region
California
Population
103,536GeoNames
Coordinates
37.5630, -122.325537°33′47″N 122°19′32″W
Time zone
America/Los_AngelesUTC−08:00 / UTC−07:00 (daylight saving time)
Local time
–
Elevation
13 m (43 ft)
Distance to Washington, D.C.
3,918 km (2,434 mi)
Where is San Mateo?
- Located in the Northern and Western hemispheres.
- Daylight ranges from about 9 h 34 min on the shortest day to 14 h 46 min on the longest day (around 21 December and 21 June).
Cities near San Mateo
- Foster City — 5 km east
- San Bruno — 11 km northwest
- Redwood City — 12 km southeast
- South San Francisco — 13 km northwest
- Pacifica — 15 km west
- Menlo Park — 18 km southeast
- Daly City — 20 km northwest
- Palo Alto — 21 km southeast
- San Leandro — 23 km northeast
- Alameda — 24 km north
Largest cities in California
- Los Angeles — 3,820,914
- San Diego — 1,404,452
- San Jose — 997,368
- San Francisco — 827,526
- Fresno — 542,107
- Sacramento — 524,943
- Long Beach — 474,140
- Oakland — 419,267
- Bakersfield — 373,640
- Anaheim — 350,742
Largest cities in United States
- New York City — 8,804,190
- Los Angeles — 3,820,914
- Brooklyn — 2,736,074
- Chicago — 2,664,452
- Queens — 2,316,841
- Houston — 2,314,157
- Phoenix — 1,650,070
- Philadelphia — 1,573,916
- San Antonio — 1,526,656
- Manhattan — 1,487,536
Map of United States and all its cities →
Other places named San Mateo
Sources: place names, coordinates, populations and time zones from GeoNames (CC BY 4.0, data retrieved October 2026). Population figures are the latest values recorded in GeoNames; depending on the country they refer to the city proper, a municipality or a wider urban area, so they can differ from census or metro-area figures. Map © OpenStreetMap contributors.