Philadelphia is located in Philadelphia county Pennsylvania with a geographic area of 134.4 square miles. The total population in Philadelphia is 1,581,531 with 47.3% male and 52.7% female. Children under age 5 represent 6.6% of the population, under age 18 equal 21.7% of the population and over age 65 is 13.7% of the population. The median household income is $49,127, per capita income is $29,644. There are a total of 613,125 housing units with 52.8% owner occupied. Education includes 29.0% of residents that are high school graduates and 34.3% with a bachelor's degree or higher. The average temperature in Philadelphia in the summer is 74 degrees, and in the winter 33 degrees.
