Land for sale in Monongalia County, West Virginia, recently totaled approximately $99 million and almost 2,000 acres. Monongalia County ranks third in the Mountain State for the total acreage of land currently advertised for sale. Of all land for sale in Monongalia County, Morgantown featured the most land for sale. From an economic perspective, government and state-level services contribute most to Monongalia County's overall GDP. Monongalia County is West Virginia's 33rd largest county (365 square miles). It's located in the Northwest West Virginia region of the state.