What are the Lake Poinsett, South Dakota Zip Codes for 2020, 2019Primary Zip Codes for Lake PoinsettZip CodePrimary CitySecondary City57212ArlingtonLake Poinsett, HetlandCities sharing Zip Codes with Lake PoinsettZip CodePrimary CitySecondary CityMore Information57212ArlingtonHetland57212ArlingtonLake Poinsett Lake Poinsett population stats Advertisements