Ontario este un oraș situat la est de Los Angeles în comitatul Bernardino County, statul California, SUA. Orașul ocupă suprafața de 129,1 km², el avea în anul 2004, 170.057 loc. fiind supranumit Poarta Californiei de Sud ("Gateway to Southern California").
^„City Facts”. City of Ontario. Arhivat din original la . Accesat în .
^„Public Officials”. City of Ontario, California. Arhivat din original la . Accesat în .
^„California Cities by Incorporation Date”. California Association of Local Agency Formation Commissions. Arhivat din original (Word) la . Accesat în .
^Recensământul Statelor Unite ale Americii din 2010, accesat în
^„Annual Estimates of the Resident Population for Incorporated Places: aprilie 1, 2010 to iulie 1, 2014”. Accesat în .
^„Census of Population and Housing”. Census.gov. Accesat în .
^ https://web.archive.org/web/20140927081300/http://www.weather.com/weather/wxclimatology/monthly/graph/USCA0806. Arhivat din original la . Accesat în .Lipsește sau este vid: |title= (ajutor)
“The Frankish Building: A Reflection of the Success of Ontario, California” — a National Park Service Teaching with Historic Places (TwHP) lesson plan.
v•d•mMunicipalități și comunități din Comitatul San Bernardino, California Reședința comitatului: San Bernardino
Orașe (Cities)
Adelanto | Apple Valley | Barstow | Big Bear Lake | Chino | Chino Hills | Colton |Fontana | Grand Terrace | Hesperia | Highland | Loma Linda | Montclair | Needles | Ontario |Rancho Cucamonga | Redlands |Rialto |San Bernardino | Twentynine Palms | Upland |Victorville | Yucaipa | Yucca Valley
Locuri desemnate de United States Census Bureau
Big Bear City | Big River | Bloomington | Bluewater | Crestline | Declezville | Joshua Tree | Lake Arrowhead | Lenwood | Mentone | Morongo Valley | Mountain View Acres | Muscoy | Running Springs | San Antonio Heights | Searles Valley | Twentynine Palms Base |Wrightwood
Comunități neîncorporate (Unincorporated areas)
Amboy | Angelus Oaks | Arrowbear Lake | Baker | Baldy Mesa | Bell Mountain | Blue Jay | Bryn Mawr | Cadiz | Cedar Glen | Cedarpines Park | Cima | Crafton | Crest Park | Daggett | Del Rosa | Devore | Earp | El Mirage | Essex | Fawnskin | Fenner | Forest Falls | Fort Irwin | Goffs | Green Valley Lake | Guasti | Halloran Springs | Havasu Lake | Helendale | Hinkley | Hodge | Ivanpah | Johnson Valley | Landers | Lucerne Valley | Ludlow | Lytle Creek | Mojave Heights | Mount Baldy | Mountain Pass | Nebo Center | Newberry Springs | Nipton | Oak Hills | Oak Glen | Oro Grande | Patton | Parker Dam | Parker Junction | Phelan | Pinon Hills | Pioneertown | Red Mountain | Rimforest | Skyforest | Sugarloaf | Sunfair | Sunfair Heights | Trona | Twin Peaks | Vidal | Vidal Junction | Yermo | Zzyzx
Rezervații amerindiene (Indian reservations)
Colorado River Indian Reservation | Fort Mojave Indian Reservation | Twenty-Nine Palms Reservation
Big Sur • Central Valley • Central Coast • Channel Islands • Coachella Valley • Conejo Valley • Valea Morții • Eastern California • Emerald Triangle • Gold Country • Greater Los Angeles • Imperial Valley • Inland Empire • Mojave • Northern California • North San Diego County • Owens Valley • Pomona Valley • The Peninsula • Redwood Empire • Sacramento Valley • San Fernando Valley • San Francisco Bay Area • San Gabriel Valley • Santa Clara Valley • Santa Clarita Valley • San Joaquin Valley • Shasta Cascade • Sierra Nevada • Silicon Valley • Southern California • Wine Country