Washington township is located in Westmoreland county Pennsylvania with a geographic area of 2.9 square miles. The total population in Washington township is 749 with 51.8% male and 48.2% female. Children under age 5 represent 6.8% of the population, under age 18 equal 21.8% of the population and over age 65 is 20.4% of the population. The median household income is $64,926, per capita income is $28,900. There are a total of 283 housing units with 88.3% owner occupied. Education includes 54.8% of residents that are high school graduates and 16.6% with a bachelor's degree or higher. The average temperature in Washington township in the summer is 73 degrees, and in the winter 33 degrees.