Ontario is located in San bernardino county California with a geographic area of 50.0 square miles. The total population in Ontario is 178,194 with 49.0% male and 51.0% female. Children under age 5 represent 6.9% of the population, under age 18 equal 26.3% of the population and over age 65 is 9.5% of the population. The median household income is $67,357, per capita income is $24,682. There are a total of 50,599 housing units with 54.6% owner occupied. Education includes 23.3% of residents that are high school graduates and 20.9% with a bachelor's degree or higher. The average temperature in Ontario in the summer is 74 degrees, and in the winter 43 degrees.
