Data & Demographics

Ontario is located in San Bernardino County, California, United States, 35 miles east of downtown Los Angeles. Located in the western part of the Inland Empire region, it lies just east of the Los Angeles county line and is bordered on the South by Orange County and Riverside County. As of the 2010 Census, the City of Ontario, California had a population of 163,924, with 2011 estimates at 166,390, making it San Bernardino County’s fourth most populous City after San Bernardino, Fontana, and Rancho Cucamonga.

The City is home to the LA/Ontario International Airport which is the 15th busiest cargo airport in the United States. This cargo airport is home to the UPS Western Region hub for both air and trucking operations within a 13-state region and FedEx the world's largest airfreight express carrier and North America's second largest trucking company. Ontario handles freight traffic between the ports of Los Angeles and Long Beach and the rest of the country.

The City of Ontario, California takes its name from the Ontario Model Colony development established in 1882 by the Canadian engineer George Chaffey and his brothers William Chaffey and Charles Chaffey. They named the settlement after their home province of Ontario, Canada.


Regional Intelligence Report

Read more to get up to date economic data prepared for the City of Ontario by Beacon Economics.

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City Demographics & US Census Reports





Greater Ontario area: 28,000 square miles (San Bernardino & Riverside Counties)

925 Ft



321 days

Average annual sunshine

83° F / 24° C

Average Median temprature

16.6 inches

Average annual rainfall

  • Mediterranean-like climate: moderate temperatures & low humidity year-round
  • A few rainy days generally followed by many days of sunshine & clear skies



City of Ontario, California: 2010 US Census

+120,000 people

Anticipated growth by 2025

4.23 million

in the Greater Ontario area

  • One of Southern California’s fastest growing cities for more than 25 years
  • Poised to be the largest city in San Bernardino County and second largest in the Inland Empire


29.9 years

Median age


Median income

less than 15.1%

proportion of population over age 55

  • Households (largest proportion): 29.4% married couples with minor children at home
  • Occupation (largest proportion): 27% Sales and Office and 16% Manufacturing



107,067+ jobs

Provided by ontario employers

  • Region’s principal center for job growth: Ontario
  • Driving the increase: outward migration of firms & people from Southern California’s coastal counties

Ontario Crime Statistics

Location Violent Crimes* Property Crimes*
Ontario, CA 4.4 29.8
Los Angeles, CA 6.0 22.2
San Diego, CA 4.6 25.6
San Francisco, CA 7.3 41.0
Phoenix, AZ 5.7 41.3
Dallas, TX 7.7 41.0
Dallas, TX 7.7 41.0
San Francisco, CA 7.3 41.0
Denver, CO 5.1 32.1
Atlanta, GA 11.3 62.9
Miami, FL 11.1 45.3
New York, NY 5.1 15.8
Washington, DC 12.6 45.8
*per 1,000 city population
*Figures from 2009 data obtained by the Federal Bureau of Investigation

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