Washington court house is located in Fayette county Ohio with a geographic area of 8.9 square miles. The total population in Washington court house is 14,155 with 48.5% male and 51.5% female. Children under age 5 represent 7.6% of the population, under age 18 equal 24.7% of the population and over age 65 is 17.4% of the population. The median household income is $43,758, per capita income is $24,414. There are a total of 6,032 housing units with 53.7% owner occupied. Education includes 44.9% of residents that are high school graduates and 16.2% with a bachelor's degree or higher. The average temperature in Washington court house in the summer is 72 degrees, and in the winter 32 degrees.