Mableton () is an unincorporated community and census-designated place (CDP) in Cobb County, Georgia, United States. According to the 2020 census, Mableton has a population of 40,834. Upon Brookhaven's cityhood in December 2012, Mableton became the largest unincorporated CDP in Metro Atlanta. On November 8, 2022, following the 2022 midterm elections, a referendum on cityhood was passed. It is set to become the largest city in Cobb County in terms of population. History Between the 16th and 19th centuries, most of the land in present-day southern Cobb County belonged to the Cherokee and Creek. Two indigenous villages were established near the area that will later become known as Mableton - the settlements of Sweet Water Town and Nickajack. Both tribes coinhabited the area peacefully, with one legend claiming that eventual ownership of the area by the Cherokee was settled via a ball game. One of the earliest known records of white Europeans being aware of the inhabitants is an 1839 map depicting a 'Nickajack Creek' converging with the Chattahoochee River south and west of the Standing Peachtree settlement. Ultimately, all native inhabitants in Georgia were forced out of their lands by the 1830s, and much of the vacancies were granted to European settlers by land lottery. The town was named after Scottish immigrant Robert Mable (1803-1885), who on September 11, 1843, bought 300 acres (approximately 120 hectares or 1.2 km2) of land in southern Cobb County from the Georgia Land Lottery of 1832. Mable was a millwright and farmer who grew cotton, corn, potatoes, and sorghum in the area; he owned between 11 and 48 slaves by 1860. According to oral interviews, Mable was a "fair and kind" enslaver who educated slave children alongside his own, and eventually also liberated his slaves before any government mandate ordered him to. The Robert Mable House and Cemetery, located off U.S. 78 on Floyd Road just north of Clay Road, now includes an amphitheater which hosts public events. More white settlers moved into the northern edge of Mableton by Nickajack Creek, near Smyrna, in the mid-1800s. They formed a community initially known as 'Mill Grove', and later 'Nickajack.' The creek provided ample power to run grist, saw, cotton, and woolen mills. A covered bridge, originally built c. 1848–1850, traverses the stream and is now part of a historical district. It is one of the few remaining covered bridges in Georgia, and still highly