Lock haven is located in Clinton county Pennsylvania with a geographic area of 2.5 square miles. The total population in Lock haven is 8,997 with 45.5% male and 54.5% female. Children under age 5 represent 4.8% of the population, under age 18 equal 16.4% of the population and over age 65 is 12.6% of the population. The median household income is $36,708, per capita income is $19,604. There are a total of 3,441 housing units with 32.1% owner occupied. Education includes 41.5% of residents that are high school graduates and 22.0% with a bachelor's degree or higher. The average temperature in Lock haven in the summer is 70 degrees, and in the winter 33 degrees.