Of three counties in the Diamond State, New Castle County is third in terms of its size (494 square miles). New Castle County is in the Northern Delaware region. Delaware's New Castle County has almost 1,000 acres of farms for sale based on recent Land Network data. The combined market value of farmsand rural real estate for sale here was about $7 million. The average price of farms for sale in New Castle County was $4 million. Farms for sale in New Castle County support livestock including horses. Together with fields and farmland for grazing and crop production, New Castle County farms for sale feature orchards where harvests include regionally grown fruits and vegetables. Browse all Delaware 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.