South Fulton is a city in Obion County, Tennessee, United States. The population was 2,354 at the 2010 census. It is part of the Union City, TN–KY Micropolitan Statistical Area.
South Fulton is located at 36°29′48″N 88°52′45″W (36.496716, -88.879193).
According to the United States Census Bureau, the city has a total area of 3.1 square miles (8.0 km2), all land.
As of the census of 2000, there were 2,517 people, 1,081 households, and 729 families residing in the city. The population density was 814.4 people per square mile (314.5/km²). There were 1,199 housing units at an average density of 388.0 per square mile (149.8/km²). The racial makeup of the city was 78.98% White, 19.47% African American, 0.28% Native American, 0.12% Asian, 0.20% from other races, and 0.95% from two or more races. Hispanic or Latino of any race were 0.56% of the population.
There were 1,081 households out of which 27.3% had children under the age of 18 living with them, 48.2% were married couples living together, 15.6% had a female householder with no husband present, and 32.5% were non-families.