What are the Gopher, South Dakota Zip Codes for 2020, 2019Primary Zip Codes for GopherZip CodePrimary CitySecondary City57601MobridgeGopher, Foster, PromiseCities sharing Zip Codes with GopherZip CodePrimary CitySecondary CityMore Information57601MobridgeFoster57601MobridgeGopher57601MobridgePromiseAdvertisements