According to the United States Census Bureau, the city has a total area of 1.8 square miles (4.7 sq km), of which, 1.8 square miles (4.7 sq km) of it is land and 0.55% is water. Greenville is a city in Meriwether County, Georgia, United States. The city is the county seat of Meriwether County. 54.9 miles (88.4 km) southwest of Atlanta. It is part of the Atlanta metropolitan area (Atlanta-Sandy Springs-Marietta, Georgia Metropolitan Statistical Area).