Jefferson County Montana (Historic Districts) has 5 places on the National Register of Historic Places including 2 places of Statewide significance. Significant places include Beavertown Historic District and Montana State Training School Historic District, Grant-Marshall Lime Kiln Historic District, The.
Some of the country's most noteable architects helped create the Jefferson County places including Abel and Charles Newberry, James S. Grant and William Leek. Prominent architectural styles found in Jefferson Country are Rustic.