Loudon is located in Loudon county Tennessee with a geographic area of 12.6 square miles. The total population in Loudon is 5,829 with 48.8% male and 51.2% female. Children under age 5 represent 2.3% of the population, under age 18 equal 20.3% of the population and over age 65 is 22.3% of the population. The median household income is $46,148, per capita income is $27,384. There are a total of 2,177 housing units with 61.2% owner occupied. Education includes 36.7% of residents that are high school graduates and 13.3% with a bachelor's degree or higher. The average temperature in Loudon in the summer is 77 degrees, and in the winter 38 degrees.