The combined value of land and rural real estate for sale in Indiana's Union County recently on Land.com was approximately $4 million. This represents 1,000 acres of farms, rural land, hunting land and other land for sale in Union County. Union County ranks 92nd in the Hospitality State for the combined amount of land currently advertised for sale. Of all locations in Union County with farms, hunting land and other rural land and acreage for sale, Liberty had the most land for sale. Union County is the 90th largest county (165 square miles) in Indiana. It's located in the East Indiana region of Indiana.