Union County is in Southeast South Dakota. Of the 66 counties in the Coyote State, Union County is 62nd in terms of its size (467 square miles). Union County, South Dakota, includes almost 1,000 acres of lakefront property for sale based on recent Land Network data. The combined market value of farms, ranches, hunting land and other land for sale here was nearly $4 million. The average price of lakefront land for sale in Union County was $1 million. Whether it's alongside a tranquil river, freshwater lake or a twinkling inland beach waterfront property holds an undeniable allure. For fishing enthusiasts, common species to fish in Union County include bass, trout, pike, walleye, catfish, salmon, bluegill and sunfish. 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 and elk. 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!