Outlying Area, Conyers...

Rockdale County was created from parts of Henry and Newton counties. It was the 133rd county created, and was named after the Rockdale Church, as well as the vein of granite running beneath the county.

Conyers, the county seat and the only incorporated municipality in Rockdale County, was named for a local physician who donated a right-of-way for the first railroad and a lot in town for the railway depot.