The value of farmsand rural real estate for sale in Smith County, Mississippi, recently on Land.com was almost $21 million. This represents nearly 4,000 acres of farms, hunting land and other rural land and acreage for sale in Smith County. Smith County ranks 43rd out of 82 counties in the Hospitality State for the combined amount of land currently advertised for sale. Of all land for sale in Smith County, Mize had the most land for sale. From an economic perspective, manufacturing and related services are the main sectors in Smith County. Smith County is the 30th biggest county (637 square miles) in Mississippi. It's located in the Pines Mississippi region of the state.