Of 82 counties in the state, Union County ranks 72nd by size (416 square miles). Union County is in Hills Mississippi. There is approximately 1,000 acres of ranches for sale in Union County, Mississippi, based on recent Land Network data. The combined market value of farms, hunting land and other rural land and acreage for sale here is around $2 million. Browse all Union County ranches for sale on the Land Network to find the ranch that's right for your business or commercial needs, from the sprawling legacy ranch to unbelievable residential ranch for your second home, investment property or retirement nest egg. The most common type of land for sale by combined acreage in Union County is residential property.