Where is Ontario, California, USA?

Written and Fact-checked by | Updated On: November 23, 2025, 12:40 ET

Where is Ontario Located? - Ontario is a city located in the San Bernardino County of California, United States. Ontario lies between 39.5758 Degrees North latitudes and 105.1122 Degrees West longitudes.

Location Map of Ontario, California

Where is Ontario, California

Ontario Map, California, USA

Where is Ontario?: The Google Map showing the location of Ontario in the U.S. state of California.

Where is Ontario Located?

Ontario is a city located in the San Bernardino County of California, United States. Ontario lies between 39.5758 Degrees North latitudes and 105.1122 Degrees West longitudes. According to 2020 U.S.census, the population of Ontario city is 175265 people and the city has a total area of 49.96 sq mi. The city has numerous parks and recreational facilities.

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Ontario, California Quick Facts

AttributeInformation
CityOntario
CountySan Bernardino County
StateCalifornia
State CapitalSacramento
US RegionWest (Pacific)
Latitude34.0633° N
Longitude117.6509° W
Elevation1,004 ft (306 m)
Land Area49.96 sq mi
Water Area0.00 sq mi
Total Area49.96 sq mi
Population (2020 Census)175,265
Population DensityApproximately 3,508 per sq mi
ZIP Codes91758, 91761, 91762, 91764
Area Code909
Time Zone StandardPacific Standard Time (PST, UTC−8)
Time Zone DaylightPacific Daylight Time (PDT, UTC−7)
CurrencyUnited States Dollar (USD)
FIPS Code06-53948
Congressional DistrictCalifornia's 35th Congressional District

Transportation and Connectivity in Ontario

CategoryInformation
Airport NameOntario International Airport
IATA CodeONT
Nearest Major AirportLos Angeles International Airport
Major HighwaysInterstate 10, Interstate 15, State Route 60, State Route 83
Rail ServiceMetrolink commuter rail service at Ontario Station
Public TransitOmnitrans bus services
Regional ConnectionsLos Angeles metropolitan area, Inland Empire, and Southern California access
  • Ontario is a city located in San Bernardino County, California, in the Inland Empire region of Southern California.
  • The city is named after Ontario, Canada, and was founded in 1882 by George and William Chaffey.
  • Ontario developed as an agricultural community known for citrus production before becoming a major logistics and transportation center.
  • The city is known for Ontario International Airport, convention facilities, shopping, sports, and access to nearby mountain and desert regions.

Top Places to Visit in Ontario, California

Landmark NameType
Ontario Convention CenterConvention and Event Venue
Cucamonga-Guasti Regional ParkPark and Recreation Area
Ontario MillsShopping Mall
Auto Club SpeedwayMotorsports Facility
Graber Olive HouseHistoric Landmark
Ontario Museum of History and ArtMuseum and Cultural Center
Scandia Amusement ParkFamily Recreation Area
Planes of Fame Air MuseumAviation Museum
Victoria GardensShopping and Entertainment District
Chaffey-Garcia HouseHistoric Site

Driving Distances from Ontario, California to Nearby Cities

CityStateDistance (mi)Approx. Drive Time
Rancho CucamongaCalifornia510 minutes
FontanaCalifornia1015 minutes
PomonaCalifornia1525 minutes
RiversideCalifornia2030 minutes
Los AngelesCalifornia4050 minutes
San BernardinoCalifornia2030 minutes
Santa AnaCalifornia451 hour
San DiegoCalifornia1152 hours
Las VegasNevada2203 hours 30 minutes
PhoenixArizona3505 hours

Colleges and Universities Near Ontario, California

Institution NameTypeLevelNotable For
Chaffey CollegePublicCommunity CollegeTransfer programs, technology, health sciences, and workforce education
Cal Poly PomonaPublicUniversityEngineering, business, agriculture, architecture, and applied sciences
California State University, San BernardinoPublicUniversityBusiness, education, social sciences, and research
University of La VernePrivateUniversityBusiness, law, education, and liberal arts
Claremont CollegesPrivateCollege ConsortiumLiberal arts, sciences, research, and graduate programs

Waterbodies Near Ontario, California

San Antonio Creek, Cucamonga Creek, Prado Reservoir, Santa Ana River, and nearby waterways of the Inland Empire region.

Stadiums and Sports Facilities Near Ontario

Toyota Arena, Ontario Ice Skating Center, Ontario Soccer Complex, Auto Club Speedway, and nearby Inland Empire sports facilities.

Ontario, California — Key Historical Facts

  • Ontario was founded in 1882 by George and William Chaffey as an agricultural colony named after Ontario, Canada.
  • The city was incorporated in 1891 and developed around irrigation, farming, and citrus production.
  • Ontario became known as the "Lemon Capital of the World" due to its historic citrus industry.
  • The opening and expansion of Ontario International Airport helped transform the city into a major transportation and logistics hub.
  • During the twentieth century, Ontario grew as part of the expanding Inland Empire metropolitan region.
  • Today, Ontario is recognized for aviation, logistics, business development, shopping, cultural attractions, and its location within Southern California.

References

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