The 10 current counties in the ARC region are: Cherokee, Clayton, Cobb, DeKalb, Douglas, Fayette, Fulton, Gwinnett, Henry and Rockdale. Forsyth County is being added to the region in 2021.
Fulton County, which includes the city of Atlanta is the region’s largest county, but Gwinnett County has the state’s largest school district.
Here is the population by county:
- Cherokee County: 269,500
- Clayton County: 288,900
- Cobb County: 774,600
- DeKalb County: 758,230
- Douglas County: 147,000
- Fayette County: 119,400
- Fulton County: 1,049,470
- Gwinnett County: 941,300
- Henry County: 246,800
- Rockdale County: 96,800
- City of Atlanta: 478,200
Metro Atlanta is the nation’s 9th largest, just behind Philadelphia and just ahead of Phoenix, according to the Census Bureau.
What is the population of Georgia?
Atlanta region 2020 population estimates, Atlanta Regional Commission
Metro Atlanta profile, Metro Atlanta Chamber of Commerce
29-county metro Atlanta Map (pdf) from the Georgia Department of Community Health
Georgia population estimates, Governor’s Office of Planning and Budget
A Decade of Growth
Population growth of core Atlanta area counties and the city of Atlanta from 2010 to 2019:
City of Atlanta: 12%
Sources: Atlanta Regional Commission estimates and the U.S. Census Bureau
Compiled and updated by Brian O’Shea