Mercer County is in Southeast West Virginia. Of the 55 counties in the state, 269,233-acre Mercer County ranks 28th by size. Recent listings of residential land and property for sale in West Virginia's Mercer County totals approximately 1,000 acres and a combined market value of almost $21 million. The most common type of land for sale by combined acreage in Mercer County is house. The average price of residential acreage for sale in Mercer County was $305,601. Browse all residential land and rural property for sale in West Virginia to find residential land and properties that suit your lifestyle needs, from existing residential homes and estates to land ready for future residential-property development.