Located in Southern Maryland, 642-square-mile Charles County is one of the ten biggest counties in the state. Maryland's Charles County has 1,000 acres of farms for sale based on recent Land Network data. The combined market value of farms, hunting land and other rural land and acreage for sale here was nearly $800,000. The average price of farmland for sale in Charles County was $249,166. Browse all Maryland farms for sale on the Land Network to find the farm, cattle operation, hobby farm or other farm property that's right for your future commercial or lifestyle needs.