what county in ga has decatur in it
Decatur, Georgia. For the southwestern Georgia county, see Decatur County, Georgia. Decatur is a city in, and county seat of, DeKalb County, Georgia, United States. With a population of 20,148 in the 2013 census, the city is sometimes assumed to be larger since multiple zip codes in unincorporated DeKalb County bear the Decatur name.