Land for sale in Smith County, Tennessee, recently totaled approximately $25 million and nearly 2,000 acres. Smith County ranks 86th out of 95 counties in the Volunteer State for the total acreage of land currently advertised for sale. Among cities in Smith County with farms and rural real estate for sale, Elmwood featured the most land for sale. Smith County is Tennessee's 71st largest county (325 square miles). It's located in the Middle Tennessee region of the state.