Lithopolis is located in Fairfield county Ohio with a geographic area of 2.2 square miles. The total population in Lithopolis is 1,998 with 46.5% male and 53.5% female. Children under age 5 represent 9.0% of the population, under age 18 equal 28.2% of the population and over age 65 is 13.0% of the population. The median household income is $79,583, per capita income is $33,201. There are a total of 735 housing units with 79.9% owner occupied. Education includes 26.0% of residents that are high school graduates and 32.1% with a bachelor's degree or higher. The average temperature in Lithopolis in the summer is 73 degrees, and in the winter 32 degrees.