DeKalb County

Posted in: Atlanta Region Data & Maps

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 (2021)

Population	757,718
Population Change (since 2010)	+9.5%
Population Forecast (2050)	1,012,022
Median Household Income	$69,545
Unemployment Rate	3.4%
Mean Travel Time to Work	32 minutes
Single Family Building Permits	1,871
Mutlifamily Building Permits	973

View ARC's 21-County Dashboard where you can find various data points about DeKalb County.

Data Resources

Other DeKalb County Resources

ARC Board Members Representing All or Parts of DeKalb County

Michael Thurmond, CEO, DeKalb County Commission
Patti Garrett, Mayor, City of Decatur
W. Murphy Talmadge, Citizen Member, District 1
Vacant, Citizen Member, District 6
Liane Levetan, Citizen Member, District 7
Vacant, Citizen Member, District 10
Julie Keeton Arnold, Citizen Member, District 11

Data Sources

US Census Bureau, County Population Estimates, 2021
US Census Bureau, Small-Area Income and Poverty Estimates, 2020
US Census Bureau, American Community Survey (5-year estimates), 2016-2020
Atlanta Regional Commission (ARC), Series 16 Forecasts
HUD, State of the Cities Data System (SOCDS), 2021

* These cities belong to more than one county.