San Mateo
City in San Mateo County, California

San Mateo is a city in San Mateo County, California, with 105,661 residents (2020 Census). It sits at 39 ft (12 m) above sea level. The nearest town is Hillsborough, 2.6 miles W.
- 105,661residents (2020 Census)
- 39 ftelevation · 12 m
- 12.1 sq miland area · 31.4 km²
- 8,720 / sq mipopulation density
- 94401main ZIP code (4 in total)
About San Mateo
San Mateo is the most populous city in San Mateo County, California, United States, on the San Francisco Peninsula. It is part of the San Francisco Bay Area metropolitan region, and is located about 20 miles (32 km) south of San Francisco. San Mateo borders Burlingame to the north, Hillsborough to the west, San Francisco Bay and Foster City to the east and Belmont to the south. The population was 105,661 at the 2020 census. Some of the biggest economic drivers for the city include technology, health care and education.
Text: Wikipedia · CC BY-SA 4.0
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- Median household income
- $153,504
- Median home value
- $1,618,700
- Median rent
- $3,077/mo
- Median age
- 38.3
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Map of San Mateo
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Open in Google Maps ›San Mateo, CA population
San Mateo had 105,661 residents in the 2020 Census.
| 2020 Census | 105,661 |
|---|---|
| Density | 8,720 per sq mi (3,367 per km²) |
Source: U.S. Census Bureau, Decennial Census.
San Mateo at a glance
| State | California (CA) |
|---|---|
| County | San Mateo County |
| Type | City |
| Population | 105,661 (2020) |
| Land area | 12.12 sq mi (31.4 km²) |
| Water area | 3.73 sq mi (9.67 km²) |
| Elevation | 39 ft (12 m) |
| Coordinates | 37.5603° N, 122.3106° W |
| ZIP codes | 94401, 94402, 94403, 94404 |
| Official website | cityofsanmateo.org |
| Census code (GEOID) | 0668252 |
Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.
Towns near San Mateo
- Hillsborough2.6 mi W
- Baywood Park2.7 mi SW
- Belmont3.3 mi S
- Foster City3.3 mi E
- Highlands3.4 mi SW
- Burlingame3.5 mi NW
- San Carlos4.8 mi SE
- Millbrae5.7 mi NW
- Redwood City6.2 mi SE
- Emerald Lake Hills7.0 mi S
- South San Francisco7.5 mi NW
- San Bruno8.0 mi NW
Straight-line distance between town centers.
Frequently asked questions about San Mateo
What county is San Mateo in?
San Mateo is in San Mateo County, California.
What is the population of San Mateo, CA?
105,661 people lived in San Mateo at the 2020 Census.
What is the ZIP code of San Mateo, CA?
The main ZIP code is 94401. Other ZIP codes: 94402, 94403, 94404.
What is the elevation of San Mateo?
39 feet (12 m) above sea level.
What towns are near San Mateo?
Hillsborough (2.6 mi), Baywood Park (2.7 mi), Belmont (3.3 mi), Foster City (3.3 mi), Highlands (3.4 mi).
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