Atlanta | isPartOf | Fulton_County,_Georgia DeKalb_County,_Georgia | largestCity | Dunwoody,_Georgia Atlanta | isPartOf | DeKalb_County,_Georgia DeKalb_County,_Georgia | country | United_States
Atlanta is part of Fulton County, but most of it lies in DeKalb County, both of Georgia, United States. The capital of DeKalb County is Dunwoody.