What are the Hilmoe, South Dakota Zip Codes for 2020, 2019Primary Zip Codes for HilmoeZip CodePrimary CitySecondary City57568PreshoHilmoe, Edna, SweeneyCities sharing Zip Codes with HilmoeZip CodePrimary CitySecondary CityMore Information57568PreshoEdna57568PreshoHilmoe57568PreshoSweeneyAdvertisements