Chattahoochee County, also known as Cusseta-Chattahoochee County, is a county located in the U.S. state of Georgia. As of the 2010 census, the population was 11,267. The county seat is Cusseta, with which the county shares a consolidated city-county government. Despite the city-county government Cusseta is not coterminous with the county; it remains a geographically distinct municipality within the county.