Andersonville is an unincorporated community in Anderson County, Tennessee. Beginning with the 2010 census, it is treated as a census-designated place. The CDP had a population of 508 in 2020. Andersonville is located on Tennessee State Route 61 east of Norris and south of Norris Lake. The Andersonville post office is assigned zip code 37705, which includes much of northeastern Anderson County, portions of adjacent Union County and some of the city limits of Norris.