Stone Mountain
- County:
- DeKalb County
- County Seat:
- No
- Area (mi²):
- 1.651
- State:
- Georgia
Stone Mountain is a city located in DeKalb County, Georgia. Stone Mountain has a 2026 population of 6,552. Stone Mountain is currently declining at a rate of -0.59% annually and its population has decreased by -2.11% since the most recent census, which recorded a population of 6,693 in 2020.