Iosco County Michigan (Historic Districts) has 3 places on the National Register of Historic Places including 1 place of National significance and 1 place of Statewide significance. Significant places include Cooke Hydroelectric Plant and Alabaster Historic District, Five Channels Dam Archeological District.
Some of the country's most noteable architects helped create the Iosco County places including William Gilbert Fargo, James Berry Foote and United States Gypsum Co.. Prominent architectural styles found in Iosco Country are Classical Revival.