San Mateo

Population

102,398 (2020)

Type

City

Area

12.13 sq mi (31.43 km²), 3.72 sq mi water

Median age

39.1

Households

51,674

Persons per household

2.5

Median household income

$126,110

Average house value

$1,084,844

Businesses

4,225

Employees

85,034

Government

CITY OF SAN MATEO

Government office

330 W 20TH AVE, SAN MATEO, CA 94403