Formed in 1832, Cobb County was originally part of Cherokee County and was named after Judge Thomas Willis Cobb, a U.S. Senator.
Notable landmarks include Kennesaw State University, the Marietta National Cemetery and Kennesaw Mountain National Battlefield Park. Large employers include WellStar Health System, Lockheed Martin Aeronautical and Cobb County Schools.
Cobb has experienced substantial growth in the past few decades and has become one of the most populated counties in the region.
Within Cobb County are the cities of Acworth, Austell*, Kennesaw, Mableton, Marietta, Powder Springs, and Smyrna.
Cobb County by the Numbers (2022)
|Population Change (since 2010)
|Population Forecast (2050)
|Median Household Income
|Mean Travel Time to Work
|Single Family Building Permits
|Multifamily Building Permits
View ARC’s 21-County Dashboard where you can find various data points about Cobb County.
2023 Annual Report – Cobb County (pdf)
Other Cobb County Resources
ARC Board Members Representing Cobb
- Lisa Cupid, Chairwoman, Cobb County Commission
- Ollie Clemons, Mayor, City of Austell
- Angelia O’Neal, Citizen Member, District 5
- Vacant, Citizen Member, District 11
- Michelle Cooper Kelly, Citizen Member, District 13
- Tangela Jones, Citizen Member, District 14
- Steve Stancil, Citizen Member, District 15
- 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
* This city belongs to more than one county.