Franklin is located in Venango county Pennsylvania with a geographic area of 4.7 square miles. The total population in Franklin is 6,092 with 44.5% male and 55.5% female. Children under age 5 represent 4.1% of the population, under age 18 equal 16.3% of the population and over age 65 is 19.7% of the population. The median household income is $45,172, per capita income is $28,506. There are a total of 2,776 housing units with 52.1% owner occupied. Education includes 41.0% of residents that are high school graduates and 24.1% with a bachelor's degree or higher. The average temperature in Franklin in the summer is 69 degrees, and in the winter 33 degrees.