Decatur is located at 33°46′17″N 84°17′52″W (33.771355, -84.297732).

According to the United States Census Bureau, the city has a total area of 4.2 square miles (11 square kilometers), all land.

The Eastern Continental Divide bisects the city along the CSX (formerly Georgia Railroad) trackage right of way.
Decatur is located at 33°46′17″N 84°17′52″W (33.771355, -84.297732).
According to the United States Census Bureau, the city has a total area of 4.2 square miles (11 square kilometers), all land.
The Eastern Continental Divide bisects the city along the CSX (formerly Georgia Railroad) trackage right of way.
Decatur, Georgia