What are the Deerfield, South Dakota Zip Codes for 2020, 2019Primary Zip Codes for DeerfieldZip CodePrimary CitySecondary City57745Hill CityDeerfield, Mystic, RochfordCities sharing Zip Codes with DeerfieldZip CodePrimary CitySecondary CityMore Information57745Hill CityRochford57745Hill CityDeerfield57745Hill CityMysticAdvertisements