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). The total value of around 1,000 acres of commercial land and property recently listed for sale in Union County, South Dakota, was nearly $3 million. The average price of commercial land and property for sale in Union County was $217,593. Some suggested uses for commercial property currently for sale in Union County include for hunting/fishing, commercial, and agriculture use. Some common wildlife species to be found on undeveloped land for sale in Union County include whitetail deer, mule deer, turkey, pheasant and deer. Current commercial applications for commercial property for sale in Union County include for hunting/fishing, commercial and agriculture use. Browse all South Dakota commercial acreage for sale on the Land Network to find your next commercial property or land investment.