Cusseta-Chattahoochee County Chattahoochee CountyGeorgia www.ugoccc.us Map Population 10,551 (2020)Area 248.74 sq mi (644.23 km²), 2.42 sq mi waterGovernment UNIFIED GOVERNMENT OF CUSSETA-CHATTAHOOCHEE COUNTYGovernment office 215 MCNAUGHTON ST, CUSSETA, GA 31805