Williamsport is located in Warren county Indiana with a geographic area of 1.3 square miles. The total population in Williamsport is 1,753 with 51.3% male and 48.7% female. Children under age 5 represent 3.2% of the population, under age 18 equal 18.3% of the population and over age 65 is 21.4% of the population. The median household income is $48,920, per capita income is $28,086. There are a total of 705 housing units with 66.5% owner occupied. Education includes 43.4% of residents that are high school graduates and 15.2% with a bachelor's degree or higher. The average temperature in Williamsport in the summer is 73 degrees, and in the winter 29 degrees.