Richland County is in Missouri River Country Montana. Of the 56 counties in Big Sky Country, Richland County is 32nd in terms of its size (1 million acres). The total value of roughly 1,000 acres of residential land recently listed for sale in Montana's Richland County was approximately $3 million. The average price of residential acreage for sale in Richland County was $362,661. 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.