Seattle is located in King county Washington with a geographic area of 83.8 square miles. The total population in Seattle is 741,251 with 50.6% male and 49.4% female. Children under age 5 represent 4.6% of the population, under age 18 equal 14.5% of the population and over age 65 is 12.5% of the population. The median household income is $97,185, per capita income is $63,610. There are a total of 344,629 housing units with 44.9% owner occupied. Education includes 7.6% of residents that are high school graduates and 67.0% with a bachelor's degree or higher. The average temperature in Seattle in the summer is 64 degrees, and in the winter 42 degrees.