What are the Roswell, South Dakota Zip Codes for 2020, 2019Primary Zip Codes for RoswellZip CodePrimary CitySecondary City57349HowardRoswell, Argonne, Vilas,Cities sharing Zip Codes with RoswellZip CodePrimary CitySecondary CityMore Information57349HowardRoswell57349HowardArgonne57349HowardVilasAdvertisements