Jimmy Carter Regional Airport (ICAO: KACJ, FAA LID: ACJ) previously Souther Field is a public airport located four miles (6 km) northeast of the central business district of Americus, in Sumter County, Georgia, United States. It is owned by the Sumter County and Airport Authority. Although most U.S. airports use the same three-letter location identifier for the FAA and IATA, Souther Field is assigned ACJ by the FAA but has no designation from the IATA.