McDuffie County - Georgia

County Courthhouse

County Seat: Thomson
Incorporated: October 18, 1870
Population: 21,231
Total Area: 259.8 Square miles

McDuffie County was created in 1870 from parts of Columbia and Warren counties. Georgia's 132nd county was named for George McDuffie, who was born in Georgia and served as a governor of and a senator from South Carolina.

There are several noteworthy historic sites in the county. These include the Rock House, a 1785 stone structure which is Georgia's oldest documented dwelling.