What are the Arlington, South Dakota Zip Codes for 2020, 2019Primary Zip Codes for ArlingtonZip CodePrimary CitySecondary City57212ArlingtonArlington, Lake Poinsett, HetlandCities sharing Zip Codes with ArlingtonZip CodePrimary CitySecondary CityMore Information57212ArlingtonHetland57212ArlingtonLake Poinsett Lake Poinsett population stats Advertisements