Atlanta is located in Logan county Illinois with a geographic area of 1.2 square miles. The total population in Atlanta is 2,156 with 48.1% male and 51.9% female. Children under age 5 represent 9.6% of the population, under age 18 equal 27.8% of the population and over age 65 is 14.4% of the population. The median household income is $55,694, per capita income is $24,863. There are a total of 846 housing units with 82.5% owner occupied. Education includes 36.4% of residents that are high school graduates and 15.8% with a bachelor's degree or higher. The average temperature in Atlanta in the summer is 73 degrees, and in the winter 27 degrees.