Barnesville is located in Lamar county Georgia with a geographic area of 6.1 square miles. The total population in Barnesville is 6,673 with 45.8% male and 54.2% female. Children under age 5 represent 4.9% of the population, under age 18 equal 20.9% of the population and over age 65 is 14.5% of the population. The median household income is $35,250, per capita income is $18,922. There are a total of 2,139 housing units with 46.5% owner occupied. Education includes 42.3% of residents that are high school graduates and 12.7% with a bachelor's degree or higher. The average temperature in Barnesville in the summer is 77 degrees, and in the winter 42 degrees.
