What are the Oelrichs, South Dakota Zip Codes for 2020, 2019Primary Zip Codes for OelrichsZip CodePrimary CitySecondary City57763Oelrichs57782SmithwickOelrichsCities sharing Zip Codes with OelrichsZip CodePrimary CitySecondary CityMore Information57782SmithwickOelrichs Oelrichs population stats Advertisements