Richland -- U.S. County in Montana Population (2000): 9667 Housing Units (2000): 4557 Land area (2000): 2084.089831 sq. miles (5397.767654 sq. km) Water area (2000): 18.930887 sq. miles (49.030770 sq. km) Total area (2000): 2103.020718 sq. miles (5446.798424 sq. km) Located within: Montana (MT), FIPS 30 Location: 47.779342 N, 104.458252 W Headwords: Richland Richland, MT Richland County Richland County, MT