Bellefontaine is located in Logan county Ohio with a geographic area of 10.0 square miles. The total population in Bellefontaine is 13,250 with 46.7% male and 53.3% female. Children under age 5 represent 8.0% of the population, under age 18 equal 26.1% of the population and over age 65 is 15.7% of the population. The median household income is $51,307, per capita income is $25,941. There are a total of 5,409 housing units with 58.4% owner occupied. Education includes 43.2% of residents that are high school graduates and 19.6% with a bachelor's degree or higher. The average temperature in Bellefontaine in the summer is 71 degrees, and in the winter 32 degrees.