Cincinnati is located in Hamilton county Ohio with a geographic area of 77.8 square miles. The total population in Cincinnati is 302,687 with 48.4% male and 51.6% female. Children under age 5 represent 7.1% of the population, under age 18 equal 21.6% of the population and over age 65 is 12.5% of the population. The median household income is $42,663, per capita income is $32,159. There are a total of 138,696 housing units with 38.9% owner occupied. Education includes 22.1% of residents that are high school graduates and 38.4% with a bachelor's degree or higher. The average temperature in Cincinnati in the summer is 74 degrees, and in the winter 32 degrees.