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 (2022)
| Population |
762,820 |
| Population Change (since 2010) |
+10.3% |
| Population Forecast (2050) |
1,012,022 |
| Median Household Income |
$77,169 |
| Unemployment Rate |
3.9% |
| Mean Travel Time to Work |
32 minutes |
| Single Family Building Permits |
1,141 |
| Mutlifamily Building Permits |
1,268 |
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
Visit our Board Portal for a list of ARC Board members representing DeKalb County.
Data Sources
- US Census Bureau, County Population Estimates, 2022
- US Census Bureau, Small-Area Income and Poverty Estimates, 2021
- US Census Bureau, American Community Survey (1-year estimates), 2022
- US Census Bureau, American Community Survey (5-year estimates), 2017-2021
- Atlanta Regional Commission (ARC), Series 16 Forecasts
- HUD, State of the Cities Data System (SOCDS), 2022
* These cities belong to more than one county.