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 ManagerChris Constantin
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
  Density2,323.3/sq mi (897.0/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 historically took its name from San Dimas Canyon in the San Gabriel Mountains above the northern section of present-day San Dimas.

San Dimas is bordered by the San Gabriel Mountains range to the north, Glendora and Covina to the west, La Verne to its north and east side, Pomona to its south and east side, Walnut and the unincorporated community of Ramona to the southwest, and the unincorporated community of West San Dimas, which is an enclave in the southwestern portion of the city.