Harpers ferry is located in Jefferson county West virginia with a geographic area of 0.5 square miles. The total population in Harpers ferry is 334 with 50.6% male and 49.4% female. Children under age 5 represent 4.2% of the population, under age 18 equal 16.8% of the population and over age 65 is 38.0% of the population. The median household income is $94,914, per capita income is $53,795. There are a total of 148 housing units with 92.6% owner occupied. Education includes 11.5% of residents that are high school graduates and 78.4% with a bachelor's degree or higher. The average temperature in Harpers ferry in the summer is 69 degrees, and in the winter 32 degrees.