Located in the Lower Coastal Plain of southeast Georgia, Tattnall County is the state's twenty-fifth county and comprises 484 square miles. It was created in 1801 from Montgomery County and named for Governor Josiah Tattnall, a Savannah native who had once served as brigadier general in the state militia. In later years other counties were formed from parts of Tattnall County: Toombs County (1905), Candler County (July 1914), and Evans County (August 1914).