The value of all land and rural real estate for sale in Loudon County recently was nearly $330 million, representing a combined 1,776 acres of land for sale in Loudon County. Loudon County ranks ninth out of 95 counties in the Volunteer State for the total number of acres of land currently advertised for sale. Among cities in Loudon County with land for sale, Loudon featured the most land for sale. Loudon County is the 85th largest county (247 square miles) in Tennessee. It's located in the Eastern Tennessee region of the state.