North Decatur is an unincorporated community and a census-designated place (CDP) located in DeKalb County, Georgia, in the United States. It serves as a residential and commercial area within the metropolitan region of Atlanta.
According to data from the 2020 census, the population of North Decatur was 18,511. The community is defined by its status as a distinct geographic entity within DeKalb County rather than an incorporated municipality.