Tucker is a census-designated place in DeKalb County, Georgia, United States. The population was 26,532 at the 2000 Census. Although central Tucker, also known as "Main Street Tucker", is laid out as a planned "railroad town," it has never been formally incorporated. Municipal services such as fire, police, water, and schools are provided by DeKalb County. If incorporated, Tucker would be the second largest city in the county after Dunwoody (excluding Atlanta which is mostly in Fulton County). An exploratory committee formed by the Tucker Civic Association researched the possibilities of incorporating Tucker as a new city in 1996 and 1997.
The community has maintained a distinctive identity, centered on its public high school, churches, and locally owned and operated businesses such as the Cofer Brothers building supply business, Matthews' Cafeteria, and the Tucker Federal savings and loan association (although the latter institution was merged into RBC Centura). It also has been designated with its own ZIP code of 30084.
Tucker is located at 33°51′6″N 84°13′17″W / 33.85167°N 84.22139°W / 33.85167; -84.22139 (33.851736, -84.221524), approximately 15 miles northeast of downtown Atlanta.