Lewisburg is located in Preble county Ohio with a geographic area of 1.1 square miles. The total population in Lewisburg is 1,813 with 50.9% male and 49.1% female. Children under age 5 represent 6.2% of the population, under age 18 equal 28.0% of the population and over age 65 is 14.8% of the population. The median household income is $54,896, per capita income is $25,458. There are a total of 728 housing units with 71.3% owner occupied. Education includes 47.4% of residents that are high school graduates and 14.7% with a bachelor's degree or higher. The average temperature in Lewisburg in the summer is 73 degrees, and in the winter 32 degrees.