National Register of Historic Places listings in Iowa

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This is a list of properties and historic districts in Iowa that are listed on the National Register of Historic Places. There are listings in all of Iowa's 99 counties, adding up to over 2,300 total.

**Contents:** Counties in Iowa (links in *italic* lead to a new page)
Adair \| Adams \| Allamakee \| Appanoose \| Audubon \| Benton \| Black Hawk \| Boone \| Bremer \| Buchanan \| Buena Vista \| Butler \| Calhoun \| Carroll \| Cass \| Cedar \| Cerro Gordo \| Cherokee \| Chickasaw \| Clarke \| Clay \| Clayton \| Clinton \| Crawford \| Dallas \| Davis \| Decatur \| Delaware \| Des Moines \| Dickinson \| Dubuque \| Emmet \| Fayette \| Floyd \| Franklin \| Fremont \| Greene \| Grundy \| Guthrie \| Hamilton \| Hancock \| Hardin \| Harrison \| Henry \| Howard \| Humboldt \| Ida \| Iowa \| Jackson \| Jasper \| Jefferson \| Johnson \| Jones \| Keokuk \| Kossuth \| Lee \| Linn \| Louisa \| Lucas \| Lyon \| Madison \| Mahaska \| Marion \| Marshall \| Mills \| Mitchell \| Monona \| Monroe \| Montgomery \| Muscatine \| O'Brien \| Osceola \| Page \| Palo Alto \| Plymouth \| Pocahontas \| Polk \| Pottawattamie \| Poweshiek \| Ringgold \| Sac \| Scott \| Shelby \| Sioux \| Story \| Tama \| Taylor \| Union \| Van Buren \| Wapello \| Warren \| Washington \| Wayne \| Webster \| Winnebago \| Winneshiek \| Woodbury \| Worth \| Wright

This National Park Service list is complete through NPS recent listings posted August 16, 2024.^[1]