Tucson is located in Pima county Arizona with a geographic area of 241.0 square miles. The total population in Tucson is 545,340 with 49.5% male and 50.5% female. Children under age 5 represent 5.7% of the population, under age 18 equal 20.6% of the population and over age 65 is 14.8% of the population. The median household income is $45,227, per capita income is $24,468. There are a total of 215,943 housing units with 51.7% owner occupied. Education includes 19.8% of residents that are high school graduates and 30.6% with a bachelor's degree or higher. The average temperature in Tucson in the summer is 85 degrees, and in the winter 49 degrees.