Henry County Iowa (Historic Districts) has 6 places on the National Register of Historic Places including 2 places of Statewide significance. Significant places include Geode State Park, Civilian Conservation Corps Area and Pleasant Lawn School Historic District, Boyle, Hugh and Matilda, House and Cemetery Historic District, Geode State Park, Civilian Conservation Corps Area and Swedesburg Historic Commercial District.
Some of the country's most noteable architects helped create the Henry County places including M.L. Hutton, Ames Central Design Office, Underhill,H.W. and Co.. Prominent architectural styles found in Henry Country are Greek Revival, Italianate and Mid 19th Century Revival.
