Cass County Minnesota (Historic Districts) has 5 places on the National Register of Historic Places including 2 places of Statewide significance. Significant places include Battle Point (21CA12) and Minnesota State Sanatorium for Consumptives, Old Backus, Pine River to Woman Lake and Longville Stagecoach Road-Widow Lake Segment Historic District.
Prehistoric cultural affiliation(s) include Anishinabe, Wanikan, Chippewa, American and Rural dating back to 500.
Some of the country's most noteable architects helped create the Cass County places including Clarence H. Johnston. Prominent architectural styles found in Cass Country are Colonial Revival and Tudor Revival.