DeKalb County

DeKalb County was formed in 1822 and named after Baron Johann DeKalb, who was a general with the Continental Army during the Revolutionary War.

Notable landmarks include Stone Mountain Park, Emory University and Arabia Mountain National Heritage Area. Large employers include AT&T Mobility and Emory Healthcare.

DeKalb is the fourth-most populated county in metro Atlanta and has one of the region’s most diverse populations.

Within DeKalb County are the cities of Atlanta*, Avondale Estates, Brookhaven, Chamblee, Clarkston, Decatur, Doraville, Dunwoody*, Lithonia, Pine Lake, Stonecrest, Stone Mountain, and Tucker.

DeKalb County by the Numbers (2018)

Population 756,558
Population Change (since 2010) +8.4%
Population Forecast (2050) 1,012,022
Median Household Income $59,280
Unemployment Rate 7.4%
Mean Travel Time to Work 32 minutes
Single Family Building Permits 1,450
Mutlifamily Building Permits 2,223

Data Resources

Other DeKalb County Resources

ARC Board Members Representing All or Parts of DeKalb County

Data Sources

  • US Census Bureau, County Population Estimates, 2018
  • US Census Bureau, American Community Survey (1-year estimates), 2018
  • Atlanta Regional Commission (ARC), Series 16 Forecasts
  • HUD, State of the Cities Data System (SOCDS), 2018


* These cities belong to more than one county.


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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