A combined around 4,000 acres were listed for sale in Sullivan County, Tennessee, recently; the combined value of all Sullivan County land and rural real estate for sale was around $303 million. Sullivan County ranks fourth out of 95 counties in Tennessee for the total number of acres of land currently advertised for sale. Of all locations in Sullivan County with farms, hunting land and other rural land and acreage for sale, Kingsport featured the most land for sale. From an economic perspective, manufacturing and related services are the main sectors in Sullivan County. Sullivan County is the 56th largest county (429 square miles) in Tennessee. It's located in the Eastern Tennessee region of Tennessee.