Mitchell County Iowa has 12 places on the National Register of Historic Places including 2 places of Statewide significance. Significant places include Mitchell County Courthouse and Otranto Bridge, Cedar Valley Seminary, Deering, Nathaniel Cobb and Lucetia Baily, House and First Lutheran Church.
Several famous people are associated with these Mitchell County historic places including Pastor C.L. Clausen and Nathaniel Cobb Deering.
Some of the country's most noteable architects helped create the Mitchell County places including Chicago Bridge and Iron Company, John Bishop, Howard Burr, Sveidengard Bros., Fargo Engineering Co. and Rauk Bros.. Prominent architectural styles found in Mitchell Country are Italianate, Gothic and Gothic Revival.
