Located in Central Maryland, 526-square-mile Harford County is one of the ten biggest counties in the Terrapin State. Recent listings of farms for sale in Maryland's Harford County totals almost 1,000 acres and a combined market value of around $2 million. The most common type of land for sale by combined acreage in Harford County is residential property. The average price of farmland for sale in Harford County was $539,450. 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 business or lifestyle needs.