The overall value of farms, hunting land and other rural land and acreage for sale in Montgomery County recently on Land.com was $100 million. This represents almost 2,000 acres of land for sale in Montgomery County. Montgomery County ranks 31st in the Old Dominion for the total number of acres of land currently advertised for sale. Among cities in Montgomery County with land and rural real estate for sale, Blacksburg had the most land for sale. From an economic perspective, government and state-level services contribute most to Montgomery County's overall GDP. Montgomery County is Virginia's 50th largest county (389 square miles). It's located in the Mountain Virginia region of the state.