Introduction to San Dimas, California

San Dimas, California, in Los Angeles county, is 4 miles NW of Pomona, California (center to center) and 19 miles N of Anaheim, California. It's situated in the foothills of the San Gabriel Mountains and is regarded as a Los Angeles suburb. San Dimas is approximately 35 miles away from the Pacific ocean. The commercial district has kept an old western appearance with old-fashioned looking store fronts and wooden sidewalks.

San Dimas History

The Gabrieleno Indians were the initial occupants. In 1774 Juan Bautista De Anza entered the region while traveling from Mexico to Monterey. Development began in the early 1800s while it was named Mud Springs. In 1887 the arrival of the Santa Fe Railroad created a land boom. The San Jose Ranch Company laid out the streets. San Dimas became a thriving agricultural community and oranges were the primary crop. It became a prominent shipping center for the region's citrus growers.

San Dimas Area Attractions

The Irwindale Speedway is nearby. The county offers the Arboretum of Los Angeles, Descano Gardens, Norton Simon Museum, Los Angeles County Museum of Art, the Pasadena Museum of California Art, the Los Angeles Zoo and numerous other attractions.

San Dimas Activities

The popular Raging Waters is located in San Dimas. The city includes numerous parks for outdoor activities including, Frank G. Bonelli Regional, Ladera Serra, Loma Vista and Via Verde parks. Disneyland, Knott's Berry Farm and Universal Studios Hollywood are nearby. For recreational opportunities, the county offers the Santa Monica Mountains National Recreation Area, Los Padres National Forest, San Gabriel Mountains and the Angeles National Forest. Venice Beach, the Santa Monica pier and Griffith Park are popular county destinations. The region's Castaic Lake Recreational Area, is available for water skiing and swimming.


Total Population 34,073
Male Share of the Population 46.6%
Female Share of the Population 53.4%
Senior Citizens 18%
Employed Population 16+ 15,555
Age of the Population 43


% of people married 49.9%
Average household size 3

Education and Earnings

Population % with Bachelor Degree or Higher 35.7%
Median Earnings25+ $46,941
Median Earnings Without High School Qualification $24,964
Median Earnings With High School Degree $39,884


Median Family Income $92,928
% Above Poverty Level 93.2%
% Below Poverty Level 6.8%

Commute & Sprawl

Average Commute Time 31 minutes
% Working from Home 5.2%
% Walking and Biking to Work 2.4%
% Using Public Transportation 2.4%


People Living Alone 24.9%
Median Gross Rent $1,536
Median House Value $447,700


Other(often includes Hispanic and African American) 50.6%
US/American 0.7%
English 8.1%
Irish 7.2%

Source: American Community Survey, U.S. Census Bureau, 2015, www.census.gov/programs-surveys/acs/.

San Dimas Almanac

Category Value
Nearest Medium City 4 miles NW of Pomona, California (center to center)
Nearest Large City 19 miles N of Anaheim, California
County Los Angeles
Standard Zip Codes 91773
Phone Area Codes 909
Time Zone Pacific (-8 hours from GMT)
Daylight Savings The city observes Daylight Saving Time.
Latitude 34.106
Longitude -117.805

San Dimas Climate

Nearest Weather Stations


  • Temp ranges are avg daily min and max for the month
  • Precipitation is rainfall (and rainfall equiv of snowfall)

Distance 2.8 miles
Jan Temp 42 to 68 F
Apr Temp 47 to 74 F
Jul Temp 59 to 89 F
Oct Temp 53 to 80 F
Annual Precip 16.9 inches
Distance 16.6 miles
Jan Temp 45 to 68 F
Apr Temp 49 to 76 F
Jul Temp 62 to 95 F
Oct Temp 56 to 83 F
Annual Precip 14.7 inches
Distance 16.8 miles
Jan Temp 45 to 69 F
Apr Temp 51 to 73 F
Jul Temp 62 to 84 F
Oct Temp 56 to 80 F
Annual Precip 11.2 inches

Nearby Cities and Towns

Location Population Median Family Income
Claremont 35,762 $110,369
Covina 48,587 $72,701
Diamond Bar 56,471 $95,487
Glendora 51,137 $84,435
La Verne 31,920 $96,424
Pomona 151,753 $51,457

Source: American Community Survey, U.S. Census Bureau, 2015, www.census.gov/programs-surveys/acs/.

San Dimas Hospitals

(909) 599-6811
Emergency Service: Yes

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Santa Ana
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Los Angeles
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San Dimas High Schools

(Sorted by Number of Students)

Serves 1,425 students.
Student/teacher ratio: 25.4

A Non-traditional School
Serves 107 students.
Student/teacher ratio: 10.1

A Non-traditional School
Serves 104 students.
Student/teacher ratio: 20

San Dimas Colleges

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