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San Dimas, California

From Wikipedia, the free encyclopedia

San Dimas, California
City Hall (2017)
City Hall (2017)
Flag of San Dimas, California
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[1]
 • TypeCity council/city manager[2]
 • MayorEmmett Badar[3]
 • City ManagerChris Constantin[4]
 • Total15.43 sq mi (39.96 km2)
 • Land15.04 sq mi (38.95 km2)
 • Water0.39 sq mi (1.01 km2)  2.53%
Elevation955 ft (291 m)
 • Total34,924
 • Estimate 
 • Density2,322.07/sq mi (896.64/km2)
Time zoneUTC-8 (PST)
 • Summer (DST)UTC-7 (PDT)
ZIP code
Area code909[9]
FIPS code06-66070
GNIS feature IDs1652785, 2411784

San Dimas (Spanish for "Saint Dismas")[10] 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.

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Rancho San José was granted in 1837 to Californio rancheros Ygnacio Palomares (left) and Ricardo Vejar (right), covering all of modern San Dimas.
San Dimas, 1915

The first known European exploration of the area was in 1774, when Juan Bautista de Anza passed through on the first overland expedition of Las Californias, from New Spain-Mexico towards Monterey Bay. The area was originally developed in 1837 with the Mexican land grant from Governor Juan Bautista Alvarado to Ygnacio Palomares and Ricardo Vejar for the Rancho San Jose, then in Alta California.[11] It later became known as La Cienega Mud Springs, so named because of local mud springs that created a riparian marsh and healing place.[12] Palomares and Vejar conducted sheep and cattle operations on Rancho San Jose, also growing crops for consumption by the residents of the rancho. In the early 1860s, a severe drought decimated the ranch's population of sheep and cattle. Ygnacio Palomares died in 1864, and his widow began selling the ranch land in 1865. Vejar lost his share by foreclosure to two Los Angeles merchants, Isaac Schlesinger and Hyman Tischler, in 1864. In 1866, Schlesinger and Tischler sold the ranch to Louis Phillips.[13]

The arrival of the Los Angeles and San Gabriel Valley Railroad in 1887, later purchased by Santa Fe Railroad, led to La Cienega Mud Springs being first mapped.[14][15] The ensuing land boom resulted in the formation of the San Jose Ranch Company, which first laid out streets. Small businesses began to open soon thereafter, and the city took on a new name: San Dimas. Growth was rapid, and San Dimas soon became an agricultural community. Wheat and other Midwestern United States crops were planted first; then orange and lemon groves covered the town and the San Gabriel Valley. At one time, four citrus packing houses and a marmalade factory were located in San Dimas. The Sunkist name originated here, first spelled "Sunkissed".[10] Oranges were the major crop and business in San Dimas until the mid-20th century.

San Dimas incorporated as a city in 1960, and is now known for its Western art, small-town feel, and equestrian qualities.[16][17] In the 1990s, San Dimas was also host to the Miss Rodeo California State Pageant,[18] run by A. F. "Shorty" Feldbush and various other city volunteers. The week-long pageant was held in conjunction with the city's Western Days and Rodeo, until the pageant moved to its new home in central California.

In 1971, the San Dimas Golf Course was purchased. In 1972, San Dimas Community Hospital opened its 92-bed facility. In 1981, the San Dimas Swim and Racquet Club was built next to San Dimas High School, according to the San Dimas Historical Society.


San Dimas is a suburb of Los Angeles County nestled along the foothills of the San Gabriel Mountains, about 28 miles (45 km) east/northeast of downtown Los Angeles and north of the Pacific Ocean. According to the United States Census Bureau, the city has a total area of 15.4 sq mi, of which 0.39 sq mi (1.0 km2) is covered by water. Cinnamon Creek crosses the city, roughly parallel to the Arrow Highway, before reaching Cinnamon Falls near San Dimas Avenue.

San Dimas runs along and southward from historic U.S. Route 66, another part of its development in the earlier 20th century. Other major arteries include Arrow Highway (east–west) and San Dimas Avenue (north–south). The Foothill Freeway (I-210) connects the city to Pasadena and the San Fernando Valley, with California State Route 57 connecting to Orange County and the beaches.


This region experiences hot and dry summers, with no average monthly temperatures above 71.6 °F (22.0 °C). According to the Köppen climate classification, San Dimas has a warm-summer Mediterranean climate, Csb on climate maps.[19]


Historical population
2021 (est.)34,064[7]−2.5%
U.S. Decennial Census[20]

2020 census

The 2020 United States Census[21] reported that the population of San Dimas was 34,924 people with 11,396 households. There were a total of 13,033 housing units. The population density was 2,322.07 inhabitants per square mile (896.56/km2). The racial makeup of the city was 49.5% White (40.8% Non-Hispanic White), 3.8% Black or African American, 1.1% Native American, 14.3% Asian, and 0.1% Pacific Islander, with 12.4% from other races, and 18.6% from two or more races. Hispanic or Latino residents, of any race, made up 37.0% of the population.

Of the 11,396 households. 20.4% had children under 18 living with them, 52.6% were married couples living together, and 26.9% had a female householder with no spouse present. About 28.2% of all households were made up of individuals. The average household size was 2.9 persons per household and the average family size per household was 3.36 persons.

In the city, the age distribution was 20.4% under the age of 18, with 4.9% being 5 and under. 79.6% of the population was over the age of 18, while 19.2% were over the age of 65. Of those over the age of 65, 11.7% were between the age of 65 and 74, 5.6% were between the age of 75 and 84, and 1.9% were 85 years of age or older. The median age was 42 years of age. 53.5% of the population is female.

The median income for a household in the city was $90,234. The median income for a family with a married couple present in the household was $124,368 and for families, in general, was $110,969. Nonfamily households held a median income of $40,720. 8.8% of the population were below the poverty line. Of the total population, 6.9% of those under the age of 18 and 11.3% and older were living below the poverty line.

58.1% of those living in San Dimas were employed. The average person living in the city took 33.3 minutes to travel to work. 74.9% of those persons drove alone, 11.2% carpooled, 1.7% used a form of public transportation, 1.7% walked. 8.4% of those living in the city worked from home.

2010 census

The 2010 United States Census[22] reported that San Dimas had a population of 33,371. The population density was 2,163.1 inhabitants per square mile (835.2/km2). The racial makeup of San Dimas was 24,038 (72.0%) White with 52.3% being non-Hispanic white,[23] 1,084 (3.2%) African American, 233 (0.7%) Native American, 3,496 (10.5%) Asian, 48 (0.1%) Pacific Islander, 2,828 (8.5%) from other races, and 1,644 (4.9%) from two or more races. Hispanics or Latinos of any race were 10,491 persons (31.4%).

The census reported that 32,831 people (98.4% of the population) lived in households, 320 (1.0%) lived in noninstitutionalized group quarters, and 220 (0.7%) were institutionalized.

Of the 12,030 households, 32.2% had children under the age of 18 living in them, 54.9% were opposite-sex married couples living together, 12.2% had a female householder with no husband present, 5.1% had a male householder with no wife present, 4.5% were unmarried opposite-sex partnerships, and 91 (0.8%) same-sex married couples or partnerships. About 22.2% were made up of individuals, and 10.6% had someone living alone who was 65 years of age or older. The average household size was 2.73. Families comprised 72.1% of all households; the average family size was 3.19.

The population was distributed as 20.9% under the age of 18, 9.8% aged 18 to 24, 22.6% aged 25 to 44, 31.1% aged 45 to 64, and 15.5% who were 65 years of age or older. The median age was 42.6 years. For every 100 females, there were 90.5 males. For every 100 females age 18 and over, there were 86.8 males.

Of the 12,506 housing units, at an average density of 810.6 per square mile (313.0/km2), 72.8% were owner-occupied, and 3,273 (27.2%) were occupied by renters. The homeowner vacancy rate was 1.1%; the rental vacancy rate was 5.6%. About 73.4% of the population lived in owner-occupied housing units and 25.0% lived in rental housing units.

According to the 2010 United States Census, San Dimas had a median household income of $78,685, with 6.6% of the population living below the federal poverty line.[23]

2000 census

As of the census[24] of 2000, 34,980 people, 12,163 households, and 8,988 families were residing in the city. The population density was 2,255.7 people/sq mi (870.8/km2). The 12,503 housing units averaged 806.3/sq mi (311.2/km2). The racial makeup of the city was 74.66% White, 3.30% African American, 0.69% Native American, 9.39% Asian, 0.21% Pacific Islander, 7.34% from other races, and 4.39% from two or more races. About 23.34% of the population were Hispanics or Latinos of any race.

Of the 12,163 households, 35.5% had children under 18 living with them, 57.7% were married couples living together, 11.6% had a female householder with no husband present, and 26.1% were not families. About 21.0% of all households were made up of individuals, and 8.7% had someone living alone who was 65 or older. The average household size was 2.78, and the average family size was 3.23.

In the city, the age distribution was 25.5% under 18, 8.9% from 18 to 24, 28.1% from 25 to 44, 25.5% from 45 to 64, and 11.9% who were 65 or older. The median age was 37 years. For every 100 females, there were 92.2 males. For every 100 females age 18 and over, there were 87.2 males.

The median income for a household in the city was $62,885, and for a family was $72,124. Males had a median income of $53,009 versus $36,057 for females. The per capita income for the city was $28,321. 6.3% of the population and 3.6% of families were below the poverty line. Of the total population, 5.9% of those under the age of 18 and 11.5% of those 65 and older were living below the poverty line.

According to Mapping L.A., Mexican (16.4%) and German (9.4%) were the most common ancestries. Mexico (21.0%) and the Philippines (8.6%) were the most common foreign places of birth.[25]

Local features


  • Raging Waters Los Angeles, one of California's largest water parks
  • The Pacific Railroad Museum, a museum and library in the former ATSF San Dimas Depot on Bonita Ave.,[26] operated by the Pacific Railroad Society[27]
  • Frank G. Bonelli Regional Park[28]
  • San Dimas Dog Park[29]
  • San Dimas Canyon Natural Area and Nature Center - The San Dimas Canyon Nature Center was the first nature center in the Los Angeles County Park system opened in the 1950s. For decades, nature enthusiasts have come to discover the center’s unique artifacts, fun facts about the native animals, and learn exciting information about the area and its rich history.[30]



In the California State Legislature, San Dimas is in the  25th Senate District, represented by Democrat Anthony Portantino, and in the  41st Assembly District, represented by Democrat Chris Holden.[32]

In the United States House of Representatives, San Dimas is in California's  31st congressional district, represented by Democrat Grace Napolitano.[33]


The majority of the city lies within the Bonita Unified School District and students attend San Dimas High School. Students living in the Via Verde neighborhood south of Puente Avenue and along San Dimas Avenue attend South Hills High School in the Covina-Valley Unified School District.[34] Small numbers of students attend school in Charter Oak Unified School District. The city is also home to Life Pacific College, which is affiliated with the International Church of the Foursquare Gospel, offering undergraduate and graduate degrees.[35]



The Los Angeles Metro Rail A Line is currently being extended east from its current terminus in Azusa to Pomona. The extended line will include a San Dimas station. The station is currently under construction and will be in service with the rest of the extension in early 2025.[36]

Law enforcement

The Los Angeles County Sheriff's Department provides law enforcement services for the city of San Dimas and operates the San Dimas Station. [37]

Fire department

The Los Angeles County Fire Department provides fire protection services for the city of San Dimas. [38]

Health care

The Los Angeles County Department of Health Services operates the Pomona Health Center in Pomona, serving most of San Dimas.[39] Some portions of San Dimas are served by the Monrovia Health Center in Monrovia.[40]

Notable people

The following individuals are either notable current or former residents of San Dimas (R), were born or raised in San Dimas in their early years (B), or otherwise have a significant connection to the history of the San Dimas area (C).

See also


  1. ^ "California Cities by Incorporation Date". California Association of Local Agency Formation Commissions. Archived from the original (Word) on November 3, 2014. Retrieved August 25, 2014.
  2. ^ "City Manager's Office". Retrieved December 2, 2017.
  3. ^ "City Council". City of San Dimas. Retrieved May 5, 2020.
  4. ^ "City Manager's Office" (PDF). City of San Dimas. Retrieved January 29, 2021.
  5. ^ "2019 U.S. Gazetteer Files". United States Census Bureau. Retrieved July 1, 2020.
  6. ^ "San Dimas". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved December 19, 2014.
  7. ^ a b "City and Town Population Totals: 2020-2021". United States Census Bureau. May 16, 2022. Retrieved June 10, 2022.
  8. ^ "USPS – ZIP Code Lookup – Find a ZIP+ 4 Code By City Results". Retrieved January 18, 2007.
  9. ^ "Number Administration System – NPA and City/Town Search Results". Archived from the original on February 5, 2012. Retrieved January 18, 2007.
  10. ^ a b San Dimas Chamber of Commerce (October 2007). "A Brief History of San Dimas". California Historic Route 66 Association. Archived from the original on July 3, 2008.
  11. ^ Ogden Hoffman, 1862, Reports of Land Cases Determined in the United States District Court for the Northern District of California, Numa Hubert, San Francisco
  12. ^ "LA County Library". LA County Library. Retrieved February 21, 2024.
  13. ^ James Miller Guinn, 1915,A history of California and an extended history of Los Angeles and environs
  14. ^ "The Los Angeles and San Gabriel Valley Railroad." by Hoyt, Franklyn., Pacific Historical Review 20 (August 1951): 227–239
  15. ^ "Full text of "History of Pomona Valley, California, with biographical sketches of the leading men and women of the valley who have been identified with its growth and development from the early days to the present .."". 1920.
  16. ^ "San Dimas: Community History in Words and Pictures – County of Los Angeles Public Library".
  17. ^ Glauthier, Martha. The History of San Dimas, California. San Dimas, CA: The San Dimas Historical Society, 1997.
  18. ^ "Miss Rodeo California". Miss Rodeo California. Retrieved March 23, 2018.
  19. ^ "San Dimas, California Köppen Climate Classification (Weatherbase)". Weatherbase.
  20. ^ "Census of Population and Housing". Retrieved June 10, 2022.
  21. ^ "San Dimas city, California - Census Bureau Profile". U.S. Census Bureau. Retrieved June 10, 2022.
  22. ^ "2010 Census Interactive Population Search: CA – San Dimas city". U.S. Census Bureau. Archived from the original on July 15, 2014. Retrieved July 12, 2014.
  23. ^ a b "San Dimas (city) QuickFacts from the US Census Bureau". Archived from the original on December 3, 2013. Retrieved November 29, 2013.
  24. ^ "U.S. Census website". United States Census Bureau. Retrieved January 31, 2008.
  25. ^ "San Dimas". Mapping L.A. Retrieved February 21, 2024.
  26. ^ J.D. Velasco, San Dimas museum gives visitors a taste of railroad history, Pasadena Star-News, October 20, 2011
  27. ^ Pacific Railroad Society, Inc. "Pacific Railroad Society".
  28. ^ "Frank G. Bonelli Regional Park". Bonelli Park Support Foundation. Retrieved April 28, 2013.
  29. ^ "San Dimas Dog Park". San Dimas Dog Park.
  30. ^ "San Dimas Canyon Natural Area and Nature Center". San Dimas Canyon Natural Area and Nature Center.
  31. ^ Uranga, Rachel (March 26, 2020). "'They Are Desperately Trying to Hire': Inside Curative's Race to Produce 10K COVID-19 Test Kits a Day". USA. Retrieved November 12, 2021.
  32. ^ "Statewide Database". UC Regents. Archived from the original on February 1, 2015. Retrieved November 18, 2014.
  33. ^ "California's  31st Congressional District - Representatives & District Map". Civic Impulse, LLC.
  34. ^ "Home – Covina-Valley Unified School District". Archived from the original on April 3, 2006.
  35. ^ "Academics". Life Pacific College. Retrieved December 30, 2014.
  36. ^ "Background". Retrieved February 21, 2024.
  37. ^ "City of San Dimas - LA County Sheriff". Retrieved March 23, 2018.
  38. ^ "City of San Dimas - LA County Fire". Retrieved March 23, 2018.
  39. ^ "Pomona Health Center." Los Angeles County Department of Health Services. Retrieved on March 27, 2010.
  40. ^ "Monrovia Health Center." Los Angeles County Department of Health Services. Retrieved on March 27, 2010.
  41. ^ Sport Magazine, April 1948, pp. 22–25
  42. ^ "UCLA Gymnastics profile". Archived from the original on October 30, 2006. Retrieved March 23, 2018.
  43. ^ "D.J. Hackett".
  44. ^ "Young USWNT players hope to turn SheBelieves Cup spotlight into recurring roster spots". Los Angeles Times. February 17, 2022. Retrieved February 21, 2024.
  45. ^ "Real Salt Lake player bio". Archived from the original on January 9, 2008. Retrieved March 23, 2018.
  46. ^ "Ian Johnson".
  47. ^ "Peter Lambert".
  48. ^ "UCLA Football profile". Archived from the original on December 1, 2008. Retrieved March 23, 2018.
  49. ^ "Jeremy Reed".
  50. ^ "J.J. Spaun - 2011-12 Men's Golf Roster".
  51. ^ "VOORHIS, Horace Jeremiah (Jerry) – Biographical Information".
  52. ^ "Yahoo! Adam Wylie profile". Archived from the original on September 28, 2011.

External links

This page was last edited on 12 June 2024, at 05:10
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