What are the Rockyford, South Dakota Zip Codes for 2020, 2019Primary Zip Codes for RockyfordZip CodePrimary CitySecondary City57772PorcupineRockyford, Sharps CornerCities sharing Zip Codes with RockyfordZip CodePrimary CitySecondary CityMore Information57772PorcupineRockyford57772PorcupineSharps CornerAdvertisements