The value of all farms and rural land for sale in Virginia's Middlesex County recently was nearly $67 million, representing a total of 2,659 acres of land for sale in Middlesex County. Middlesex County ranks 44th out of 133 counties in the state for the total acreage of land currently advertised for sale. Hartfield featured the most land for sale. Based on its natural assets, tourism and recreation are important sectors for the Middlesex County economy. Middlesex County is the 92nd biggest county (210 square miles) in Virginia. It's located in the Coast Virginia region of Virginia.