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Welcome To KEY TO THE CITY's Page For
San Bernardino County, California

91761, 91762, 91764

A Balanced Community
Ontario, The City that Charms
The Model Colony

Page Contents for Ontario, California

Statistics & Facts


History & History-related items

City Attractions


Chamber of Commerce.

Organizations, Churches, and Sports.



Statistics & Facts

The California state capital is Sacramento.
The population of Ontario is approximately 172,679 (2005), 163924 (2010).
The approximate number of families is 42,536 (1990), 44931 (2010).
The amount of land area in Ontario is 95.174 sq. kilometers.
The amount of land area in Ontario is 49.828 sq. miles.
The amount of surface water is 0.144 sq kilometers.
The distance from Ontario to Washington DC is 2391 miles.
The distance to the California state capital is 380 miles. (as the crow flies)
Ontario is positioned 34.05 degrees north of the equator and 117.60 degrees west of the prime meridian.
Ontario elevation is 800 to 1200 feet above sea level.
Ontario median income is $ 42,452 (2000).
The Ontario median home price is $ 140,000 (2000).
Ontario average annual rainfall is 16.1 inches per year
Ontario average temperature is between 45 and 90 degrees F.


in southern California between San Bernardino and Pomona, about 52 miles east and south of Los Angeles. Other nearby communities include Upland, Chino, Montclair, Rancho Cucamonga, San Antonio Heights, Claremont and Chino Hills.
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sunny and comfortable most of the year. There are an average of 312 days of sunshine each year.
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History & History Related Items

The City of Ontario, California was founded in 1882 by the Chaffey Brothers, George and William of Ontario, Canada. The brothers moved from their native homeland and settled in the region to establish a "Model Colony" for others migrating to the valley. They installed all basic improvements including laying out streets and the creation of a mutual water company. They even established the first commercially successful hydroelectric plant in the United States. All this to attract people to come and live in their planned colony. Their methods became enormously successful and soon settlers began the process that would transform Ontario into a prosperous community. By 1887, the railroad came to Ontario, furthering its growth as both an industrial and a residential community.

Today, Ontario has become the fastest-growing business and industrial area in the Inland Empire. Ontario encompasses approximately 40 square miles and has a city population of over 138,000. Convenient Ontario International Airport is located here with record-breaking annual passenger traffic.

Downtown Ontario is the historical focus of this rapidly changing city. The unique beauty of its tree-lined main thoroughfare, Euclid Avenue, has become a landmark for area residents and visitors. There was a time when mule cars carried passengers up and down the center median, now hundreds of vehicles travel Euclid each day. The downtown area is comprised of approximately four hundred individual businesses.

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The founding of Ontario

1882 by George and William Chaffey

The incorporation of Ontario



Located in Ontario is the Ontario International Airport, which serves the inland area with an up-to-date large airport. Also in Ontario is a large convention center, history and art museum and many industries, including: citrus products, electrical, electronics, aircraft equipment and more. Metrolink commuter train lines run through Ontario into Los Angeles.
Phone: 909-937-2700

Ontario Convention Center

SCANDIA Amusement Park
1155 S. Wanamaker Ave.
Ontario, CA 91761
Phone: 909 390-3092
Also located in Victorville!
Fun for Everyone!!
21 rides & attractions, miniature golf, race cars, kids rides, arcade, bumper boats, batting cages, and our giant roller coaster, "The Screamer"
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Ontario City Government

City of Ontario
303 East "B" Street
Civic Center
Ontario, California 91764
Phone: 909-395-2000
Fax: 909-395-2070

Police Department

Los Angeles World Airports
including Los Angeles International Airport, Ontario International Airport, Burbank Airport, Van Nuys Airport and Palmdale Airport.
1 World Way
Los Angeles, California 90045
Phone: 310-646-5252
TDD: 310-665-0370

Ontario Chamber

Ontario Chamber of Commerce
421-B North Euclid Avenue
Ontario CA 91762
Phone: 909-984-2458
Fax: 909-984-6439

Ontario Organizations

Ontario Chamber of Commerce
421-B North Euclid Avenue
Ontario CA 91762
Phone: 909-984-2458
Fax: 909-984-6439

Ontario Schools

The Ontario-Montclair School District and the Mountain View School District serve the city's K-8 students. The Chaffey Joint Union High School District is made up of nine local regional high schools. Four of these high schools are located in Ontario.

The Chaffey Joint Union High School District

The Mountain View School District
2585 South Archibald Avenue
Ontario, California 91761
Telephone: (909) 947-2992
Fax: (909) 947-2291

Ontario-Montclair School District
950 West "D" Street
Ontario, California 91762
Phone: 909-459-2505
Fax: 909-459-2543
Email Ontario


The population of Ontario was:
1900 - 772
1910 - 4,274
1930 - 13,583
1940 - 14,197
1950 - 22,872
1960 - 46,617
1970 - 64,118
1980 - 88,820
1990 - 129,286
1996 - 142,440
2000 - 151,488
2001 - 162,332
2005 - 172,679 For years of population figures and their sources, go to this page

10,000 business establishments

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