San Dimas, California

San Dimas, California
City Hall (2017)
Location within California and Los Angeles County
Coordinates: 34°6′10″N 117°48′58″W / 34.10278°N 117.81611°W / 34.10278; -117.81611
Country United States
State California
CountyLos Angeles
IncorporatedAugust 4, 1960
Named afterSt. Dismas
Government
 • TypeCity council/city manager
 • MayorEmmett Badar
 • City ManagerBrad McKinney
Area
 • Total
15.42 sq mi (39.94 km2)
 • Land15.03 sq mi (38.93 km2)
 • Water0.39 sq mi (1.01 km2)  2.53%
Elevation
955 ft (291 m)
Population
 (2020)
 • Total
34,924
 • Estimate 
(2024)
33,226
 • Density2,320/sq mi (897/km2)
Time zoneUTC−8 (PST)
 • Summer (DST)UTC−7 (PDT)
ZIP Code
91773
Area code909
FIPS code06-66070
GNIS feature IDs1652785, 2411784
Websitesandimasca.gov

San Dimas (Spanish for "Saint Dismas") is a city in the San Gabriel Valley of Los Angeles County, California, United States. At the 2020 census, its population was 34,924. It takes its name from San Dimas Canyon in the San Gabriel Mountains, north of the city.

San Dimas is bounded by the San Gabriel Mountains to the north, La Verne and Pomona to the east, Walnut and the unincorporated community of Ramona to the south, and Glendora and Covina to the west. West San Dimas is an enclave within the city.