Lithonia, Georgia

Lithonia is a city in eastern DeKalb County, Georgia, United States. The city's population was 1,924 at the 2010 census. Lithonia is in the Atlanta metropolitan area."Lithonia" means "city/town of stone". Lithonia is in the heart of the Georgian granite-quarrying and viewing region, hence the name of the town, from the Greek λίθος lithos, for stone. The huge nearby granite dome, Stone Mountain, is composed largely of a rock called Lithonia gneiss, a form of granite. The area has a history of rock quarries. The mines were served by the Georgia Railroad and Atlanta, Stone Mountain & Lithonia Railway. Some of the rock quarries have been converted to parkland and the railines to rail-trail.Lithonia is one of the gateways to the Arabia Mountain National Heritage Area.GeographyLithonia is located in southeastern DeKalb County at . Interstate 20 passes just south of the community, with access from Exits 74 and 75. Lithonia is east of the center of Atlanta.According to the United States Census Bureau, the city has a total area of 2.3km2, all land.