DeKalb County added 10,630 residents over the past year, growing at an annual rate not seen since before the Great Recession, the Atlanta Regional Commission reported today.

Which metro Atlanta counties had the highest growth from 2017-18?

The county’s current population is now estimated at 744,530, maintaining its place as the fourth largest in Georgia behind Fulton, Gwinnett and Cobb counties. However, DeKalb added more residents than Cobb during this period, narrowing the gap.

Each of the 10 counties in Metro Atlanta had population growth over the past year, according to ARC's latest Regional Snapshot. Read more about the report here.

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A person exits the Wolf Creek Library after casting his ballot during election day on Tuesday, Nov. 4, 2025. 
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Helen Gilbert places flowers on her brother Eurie Martin’s grave at Camp Spring Baptist Church in Sandersville. Her brother died eight years ago. Three former Washington County deputies are accused of causing his death and are set to stand trial Monday. (Miguel Martinez/AJC)

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