What are the Tilford, South Dakota Zip Codes for 2020, 2019Primary Zip Codes for TilfordZip CodePrimary CitySecondary City57769PiedmontTilford, Grashul, Summerset, BethlehemCities sharing Zip Codes with TilfordZip CodePrimary CitySecondary CityMore Information57769PiedmontBethlehem57769PiedmontGrashul57769PiedmontTilford57769PiedmontSummerset Summerset population stats Advertisements