Putnam County is a county located in the central portion of the U.S. state of Georgia. As of the 2020 census, the population was 22,047. The county seat is Eatonton.

State Route 16 (SR 16) is a 179-mile-long (288 km) state highway that travels west-to-east through portions of Haralson, Carroll, Coweta, Spalding, Butts, Jasper, Putnam, Hancock, and Warren counties in the western and central parts of the U.S. state of Georgia. The highway connects the southeastern portion of Carroll County, northwest of Mount Zion to Warrenton, via Carrollton, Newnan, Griffin, Monticello, Eatonton, and Sparta.