Clarkston is located in Dekalb county Georgia with a geographic area of 1.8 square miles. The total population in Clarkston is 12,747 with 50.4% male and 49.6% female. Children under age 5 represent 13.1% of the population, under age 18 equal 35.7% of the population and over age 65 is 4.4% of the population. The median household income is $40,105, per capita income is $14,107. There are a total of 3,369 housing units with 9.2% owner occupied. Education includes 17.9% of residents that are high school graduates and 27.1% with a bachelor's degree or higher. The average temperature in Clarkston in the summer is 76 degrees, and in the winter 42 degrees.