Hempfield township is located in Westmoreland county Pennsylvania with a geographic area of square miles. The total population in Hempfield township is 40,769 with 48.3% male and 51.7% female. Children under age 5 represent 4.2% of the population, under age 18 equal 16.4% of the population and over age 65 is 24.6% of the population. The median household income is $68,733, per capita income is $37,220. There are a total of 17,254 housing units with 82.5% owner occupied. Education includes 32.3% of residents that are high school graduates and 35.2% with a bachelor's degree or higher. The average temperature in Hempfield township in the summer is 73 degrees, and in the winter 33 degrees.