What are the Dewey, South Dakota Zip Codes for 2020, 2019Primary Zip Codes for DeweyZip CodePrimary CitySecondary City57735EdgemontDewey, Lauzen, Ardmore, Burdock, ProvoCities sharing Zip Codes with DeweyZip CodePrimary CitySecondary CityMore Information57735EdgemontArdmore57735EdgemontBurdock57735EdgemontDewey57735EdgemontProvo57735EdgemontLauzenAdvertisements