Where is San Dimas, California, U.S.

Written and Fact-checked by | Updated On: March 05, 2026, 14:55 ET

Where is San Dimas, California Located in the United States? - San Dimas is a city located in the Los Angeles County in California, United States. San Dimas lies between 34.1067 Degrees North latitudes and -117.8067 Degrees West longitudes.

Location Map of San Dimas, Los Angeles, California

Where is San Dimas Located in Los Angeles, California

About Map: The map shows the location of San Dimas in Los Angeles County, in the U.S. state of California.

San Dimas Map, California, USA

About San Dimas Map: This Google Map provides a detailed view with zoom, satellite, and street options to explore the area and its surroundings.

About San Dimas, Los Angeles County, California

San Dimas is located in Los Angeles County in the U.S. state of California, United States. It lies in the southern part of the state in the state of the United States within the eastern San Gabriel Valley near the foothills of the San Gabriel Mountains. The city was incorporated in 1960 and was named after the Spanish land grant Rancho San Jose de San Dimas, and it developed from an agricultural and ranching community into a suburban residential city.

Population

According to the United States Census Bureau, the population of San Dimas is 34,924 as recorded in the 2020 Census, and the population density is approximately 2,300 people per square mile.

Area and Geography

According to the United States Census Bureau, San Dimas covers a total area of approximately 15.4 square miles (about 39.9 square kilometers), including about 15.4 square miles (39.9 square kilometers) of land and a minimal amount of water area.

Location and Surroundings

San Dimas is situated east of Glendora and west of La Verne, positioned at the foothills of the San Gabriel Mountains in eastern Los Angeles County. The city features residential neighborhoods, nearby hills, and access to recreational lakes and parks. Interstate 210 and State Route 57 provide major transportation routes connecting San Dimas to surrounding communities across Southern California.

Attractions and Recreation

San Dimas offers parks, recreational lakes, and cultural attractions that support tourism and outdoor activities. Popular destinations include Bonelli Regional Park, Raging Waters Los Angeles water park, and the historic downtown district. The city hosts community festivals, outdoor recreation programs, and seasonal events throughout the year.

Transportation

San Dimas is served by Interstate 210 and State Route 57, offering convenient highway access throughout Los Angeles County and Southern California. Public transportation includes regional bus services and nearby Metrolink rail connections linking the city to surrounding communities. The nearest major airport is Ontario International Airport, located approximately 18 miles to the east.

Explore more cities in California or visit the United States Map section to learn more about the country’s geography.

Sources:

Population and area data sourced from the United States Census Bureau (2020 Census). General city information referenced from the Official San Dimas City Website.

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San Dimas City Facts

CitySan Dimas
StateCalifornia
CountyLos Angeles County
CountryUnited States
RegionSan Gabriel Valley
IncorporatedAugust 4, 1960
Founded1887
Total AreaApproximately 15.5 sq mi (40.1 km2)
Land AreaApproximately 15.5 sq mi (40.1 km2)
ElevationApproximately 1,007 ft (307 m)
Population (2023 estimate)Approximately 34,000+
Population (2020 Census)34,924
Population DensityApproximately 2,200 people per sq mi
Time ZonePacific Time (UTC-8 / UTC-7 DST)
ZIP Codes91773
Area Code909
Major HighwaysInterstate 210, State Route 57
Public TransitFoothill Transit Bus, Metrolink (nearby)
Major AttractionsRaging Waters Los Angeles, Bonelli Regional Park, San Dimas Canyon Park
Official Websitehttps://www.sandimasca.gov/

Distance from San Dimas City, CA to Nearby Cities

  • La Verne, CA – 3 miles (5 km)
  • Glendora, CA – 5 miles (8 km)
  • Pomona, CA – 4 miles (6 km)
  • Claremont, CA – 6 miles (10 km)
  • Covina, CA – 8 miles (13 km)
  • West Covina, CA – 10 miles (16 km)
  • Azusa, CA – 7 miles (11 km)
  • Upland, CA – 8 miles (13 km)
  • Montclair, CA – 7 miles (11 km)
  • Diamond Bar, CA – 10 miles (16 km)
  • Chino Hills, CA – 12 miles (19 km)
  • Ontario, CA – 12 miles (19 km)
  • Rancho Cucamonga, CA – 15 miles (24 km)
  • Pasadena, CA – 22 miles (35 km)
  • Los Angeles, CA – 28 miles (45 km)
  • Anaheim, CA – 30 miles (48 km)
  • Riverside, CA – 35 miles (56 km)
  • San Bernardino, CA – 40 miles (64 km)
  • Long Beach, CA – 45 miles (72 km)
  • Santa Ana, CA – 40 miles (64 km)

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