Union County is in Southeast South Dakota. Of the 66 counties in the state, 467-square-mile Union County ranks 62nd by size. Union County, South Dakota, has roughly 1,000 acres of lakefront property for sale based on recent Land Network data. The combined market value of ranches, farms, hunting land and other rural land and acreage for sale here was almost $4 million. The average price of lakefront land for sale in Union County was $2 million. Whether it's alongside a tranquil river, freshwater lake or a twinkling inland beach waterfront property holds an undeniable allure. For fishermen, common species to fish in Union County include pike, bass, trout, catfish, walleye, salmon, sunfish and bluegill. Game species to hunt along the riverbanks, waterways and lakeshores of waterfront for sale in Union County, South Dakota, number whitetail deer, mule deer, deer, turkey, elk and grouse. Browse all waterfront property for sale in South Dakota on the Land Network to find the marina, lakefront and other recreational property that meets your needs, from waterside land perfect as a retirement investment to existing residential waterfront land and property for hunting, fishing and other outdoor-recreation pursuits!