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 City Facts California

    CityOntario
    StateCalifornia
    CountryUnited States
    CountySan Bernardino County
    Founded1882
    IncorporatedDecember 10, 1891
    Named AfterProvince of Ontario, Canada
    NicknameGateway to Southern California
    Population (2025 estimate)181,000
    Total Area50.0 square miles
    Elevation1,062 feet
    Time ZonePacific Time (PT), UTC −8 (Standard), UTC −7 (Daylight Saving)
    Latitude34.06° N
    Longitude117.65° W
    Coordinates34.06°N, 117.65°W
    ZIP Codes91758, 91761, 91762, 91764
    Area Codes909, 840
    Official LanguageEnglish
    CurrencyUnited States Dollar (USD)
    Major UniversityNone (near Chaffey College)
    Known ForOntario International Airport, logistics industry, convention center
    ClimateMediterranean climate
    Nearby CitiesRancho Cucamonga, Pomona, Chino, Upland
    Main AttractionsOntario Mills, Ontario Convention Center, Cucamonga-Guasti Regional Park
    Official Websitehttps://www.ontarioca.gov

    Top Attractions in Ontario, California

    • Ontario Mills – large outlet mall with shopping, dining, and entertainment
    • Graber Olive House – historic olive packing house offering tours and local products
    • Citizens Business Bank Arena (Toyota Arena) – major venue for concerts, sports, and events
    • Cucamonga-Guasti Regional Park – park with lakes, fishing, picnic areas, and trails
    • Ontario Museum of History & Art – museum showcasing local history and rotating art exhibits
    • Historic Downtown Ontario – area with vintage architecture, shops, and restaurants
    • Ontario Town Square – central plaza hosting community events and gatherings
    • Scandia Amusement Park – family-friendly attraction with rides and mini golf
    • John Galvin Park – community park with playgrounds and sports facilities
    • Auto Club Speedway – nearby motorsports venue hosting major racing events

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