Summertown is located in Lawrence county Tennessee with a geographic area of 2.0 square miles. The total population in Summertown is 521 with 40.5% male and 59.5% female. Children under age 5 represent 0.0% of the population, under age 18 equal 20.5% of the population and over age 65 is 24.0% of the population. The median household income is $40,536, per capita income is $27,471. There are a total of 247 housing units with 80.6% owner occupied. Education includes 51.4% of residents that are high school graduates and 12.6% with a bachelor's degree or higher. The average temperature in Summertown in the summer is 77 degrees, and in the winter 38 degrees.