There was a total of approximately $65 million of farms, rural land, hunting land and other land for sale in Union County, Tennessee, recently on Land.com. The total acreage of all Union County land for sale was approximately 2,000 acres. Union County ranks 39th in the state for the total number of acres of land currently advertised for sale. Of all locations in Union County with land and rural real estate for sale, Sharps Chapel featured the most land for sale. From an economic perspective, manufacturing and related services are the main sectors in Union County. Union County is Tennessee's 86th largest county (247 square miles). It's located in the Eastern Tennessee region of the state.