South Fulton Fulton CountyGeorgia www.cityofsouthfultonga.gov Map Population 102,567 (2020)Type CityArea 92.98 sq mi (240.81 km²), 1.21 sq mi waterGovernment CITY OF SOUTH FULTONGovernment office 5440 FULTON INDUSTRIAL BLVD, ATLANTA, GA 30336