Located in Capital Maryland, 667-square-mile Frederick County is one of the ten biggest counties in the Monumental State. There is around 1,000 acres of farms for sale in Frederick County, Maryland, based on recent Land Network data. The combined market value of farms, hunting land and other rural land and acreage for sale here is $10 million. The average price of farms for sale in Frederick County was $1 million. 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.