Lake County Montana (Vacant / Not In Use) has 4 places on the National Register of Historic Places including 1 place of Statewide significance. Significant places include Kootenai Lodge Historic District, Big Arm School, Polson Feed Mill, St. Joseph's Catholic Church.
Some of the country's most noteable architects helped create the Lake County places including Kirkland Cutter, Les Averil, William O'Maley and Tom McDonald. Prominent architectural styles found in Lake Country are Bungalow/Craftsman.