List of National Historic Landmarks in Iowa
This complete list of National Historic Landmarks in Iowa lists all objects and sites in the U.S. state of Iowa, which are classified as a National Historic Landmark (NHL) in this U.S. state and are under the supervision of the National Park Service. These structures, districts, objects, and other facilities meet certain criteria in terms of their national importance. This list outlines the objects according to the official names on the National Register of Historic Places.
Legend
Current NHLs in Iowa
This is the first National Historic Landmark at all.
Former Iowa NHLs
- President ( steamboat ) formerly in Davenport, Iowa, was moved to Mississippi and later to Alton (Illinois ).
National Park Service Areas in Iowa
- Effigy Mounds National Monument
- Herbert Hoover National Historic Site (also an NHL, above)