Coweta County is a county located in the west central portion of the U.S. state of Georgia. It is part of Metro Atlanta. As of the 2020 census, the population was 146,158. The county seat is Newnan.

Newnan is a city in and the county seat of Coweta County, Georgia, United States, about 40 miles (64 km) southwest of Atlanta. Its population was 42,549 at the 2020 census, up from 33,039 in 2010.