Located in North Central Montana, 4,350-square-mile Fergus County is one of the ten biggest counties in Big Sky Country. Fergus County, Montana, has roughly 3,000 acres of residential land for sale based on recent Land Network data. The combined market value of land for sale here was $28 million. The average price of residential land for sale in Fergus County was $1 million. 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.