Chattahoochee County, also known as Cusseta-Chattahoochee County, is a county located in the west central portion of 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. The county was created on February 13, 1854.