Poweshiek County Iowa (Vacant / Not In Use) has 3 places on the National Register of Historic Places including 1 place of Statewide significance. Significant places include McDowell Bridge, Kent Union Chapel and Cemetery, New Carroll House Hotel.
Some of the country's most noteable architects helped create the Poweshiek County places including King Iron Bridge and Manufacturing C and J.C. Forcum. Prominent architectural styles found in Poweshiek Country are Classical Revival.