Located in North Central Montana, 4,350-square-mile Fergus County is one of the ten biggest counties in the Treasure State. Recent listings of residential land and property for sale in Fergus County, Montana, totals nearly 1,000 acres and a combined market value of almost $12 million. The most common type of land for sale by combined acreage in Fergus County is undeveloped land. The average price of residential acreage for sale in Fergus County was $909,207. Browse all residential land and rural property for sale in Montana to find residential land and properties that suit your lifestyle needs, from existing residential homes and estates to land ready for future residential-property development.