Carroll County is a county located in the northwestern part of the State of Georgia. As of the 2020 census, its population was 119,148. Its county seat is the city of Carrollton. Carroll County is included in the Atlanta-Sandy Springs-Roswell metropolitan statistical area and is also adjacent to Alabama on its western border.

Troup County is a county located in the west central portion of the U.S. state of Georgia. As of the 2020 census, the population was 69,426. The county seat is LaGrange.