Irvine is located in Orange county California with a geographic area of 65.6 square miles. The total population in Irvine is 272,694 with 49.2% male and 50.8% female. Children under age 5 represent 7.0% of the population, under age 18 equal 22.5% of the population and over age 65 is 9.9% of the population. The median household income is $108,318, per capita income is $51,138. There are a total of 96,707 housing units with 45.2% owner occupied. Education includes 6.8% of residents that are high school graduates and 70.1% with a bachelor's degree or higher. The average temperature in Irvine in the summer is 70 degrees, and in the winter 43 degrees.