Atlanta Region Population Estimates

Each year, the Atlanta Regional Commission (ARC) produces population estimates for the 10-county Atlanta region. These estimates are developed using a number of data sources, including building permits, school enrollment and occupancy rates. 

ARC is required by state law to develop population estimates each year for its 10 member counties and the city of Atlanta for the purpose of collecting dues. 

Atlanta Region 2020 Population Estimates 

Metro Atlanta added 63,600 people in the past year, pushing the region’s 10-county population to more than 4.6 million, according to 2020 population estimates released by the Atlanta Regional Commission (ARC).

Each of metro Atlanta’s 10 counties saw population increases in the past year. Fulton and Gwinnett counties added the most residents, while the highest growth rates occurred in Cobb and Cherokee counties and the City of Atlanta.

2020 Population Estimates  

Jurisdiction 2019 2020 Change 2019-2020
Atlanta Region 4,628,400 4,692,000 63,600
Cherokee 262,700 269,500 6,800
Clayton 283,900 288,900 5,000
Cobb 766,400 774,600 8,200
DeKalb 753,030 758,230 5,200
Douglas 144,900 147,000 2,100
Fayette 118,000 119,400 1,400
Fulton 1,037,070 1,049,470 12,400
Gwinnett 925,800 941,300 15,500
Henry  240,900 246,800 5,900
Rockdale 95,700 96,800 1,100
City of Atlanta 470,500 478,200 7,700



For more data and information about metro Atlanta:

NOTICE: Gov. Brian Kemp has extended a public health emergency declaration and a statewide shelter-in-place order for older adults and medically fragile residents through June 12.

The Atlanta Regional Commission office at 229 Peachtree Street, NE Atlanta, is closed to the public until further notice. All employees are working remotely and conducting business operations. ARC employees can be contacted directly during normal business hours. However, if you need immediate assistance call 404-463-3100.

If you are seeking resources for older persons and individuals with disabilities, contact us at404-463-3333 or visit

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