Stone Mountain, Georgia Area Code

Stone Mountain, GA Area Codes are

770, 678, 470 and 943

Stone Mountain, GA is officially utilizing an area code overlay in which area codes 470, 678, 770 and 943 serve the same geographic area. Ten digit dialing (area code + seven digit number) is necessary.

In addition to Stone Mountain, GA area code information read more about area codes 470, 678, 770 and 943 details and Georgia area codes.

Stone Mountain, GA is located in DeKalb County and observes the Eastern Time Zone. View our Times by Area Code tool.

Georgia Area Code Map