What are the Forest City, South Dakota Zip Codes for 2020, 2019Primary Zip Codes for Forest CityZip CodePrimary CitySecondary City57442GettysburgForest City, GormanCities sharing Zip Codes with Forest CityZip CodePrimary CitySecondary CityMore Information57442GettysburgForest City57442GettysburgGormanAdvertisements