What are the Howell, South Dakota Zip Codes for 2020, 2019Primary Zip Codes for HowellZip CodePrimary CitySecondary City57345HighmoreHowell, TennisCities sharing Zip Codes with HowellZip CodePrimary CitySecondary CityMore Information57345HighmoreHowell57345HighmoreTennisAdvertisements