Tempe is located in Maricopa county Arizona with a geographic area of 39.9 square miles. The total population in Tempe is 191,607 with 52.4% male and 47.6% female. Children under age 5 represent 4.7% of the population, under age 18 equal 14.4% of the population and over age 65 is 10.8% of the population. The median household income is $61,290, per capita income is $33,205. There are a total of 76,218 housing units with 40.3% owner occupied. Education includes 11.8% of residents that are high school graduates and 48.7% with a bachelor's degree or higher. The average temperature in Tempe in the summer is 88 degrees, and in the winter 49 degrees.