State · National Register of Historic Places

Iowa

2,081 listed places across 99 counties, 21 of them National Historic Landmarks.

2,081
Listings
21
National Historic Landmarks
62
Historic districts
99
Counties with listings

By county

Most listings first
Scott 270Polk 165Linn 82Johnson 79Jackson 70Dubuque 60Woodbury 56Henry 50Madison 48Clayton 47Black Hawk 43Mahaska 42Cerro Gordo 41Lee 36Winneshiek 34Pottawattamie 33Story 33Hardin 30Fayette 28Muscatine 27Wapello 27Clinton 27Jefferson 25Des Moines 25Marion 25Poweshiek 22Allamakee 20Buchanan 19Boone 18Jones 18Montgomery 17Washington 16Cedar 16Van Buren 16Benton 15Floyd 15Crawford 14Carroll 14Lucas 14Calhoun 13Marshall 12Appanoose 12Jasper 12Warren 12Harrison 11Tama 11Cass 11Webster 11Dallas 11Delaware 11Greene 10Davis 10Dickinson 10Mitchell 10Page 9Monroe 9Shelby 9Iowa 9Wright 9Franklin 9Audubon 9Hancock 9Buena Vista 9Sac 8Monona 8Hamilton 8Keokuk 8Fremont 8Bremer 8Plymouth 7Decatur 7Clay 7Humboldt 7Adair 7Howard 7Butler 7Lyon 6Clarke 6Cherokee 6Louisa 6Ringgold 6Taylor 6Union 6Kossuth 6Ida 5Worth 5Guthrie 5Sioux 4Winnebago 4Palo Alto 4Wayne 4Chickasaw 4Adams 4Grundy 3Pocahontas 3O Brien 2Emmet 2Osceola 1Mills 1

Landmarks

21 in Iowa
Landmark · Bloomfield
Weaver, James B., House
National Historic LandmarkListed 1975
Landmark · Clarinda
Hepburn, Col. William Peters, House
National Historic LandmarkListed 1973
Landmark · Council Bluffs
Dodge, Grenville M., House
National Historic LandmarkListed 1966
Landmark · Ames
Knapp-Wilson House
National Historic LandmarkListed 1966

National Historic Landmarks

21
Dodge, Grenville M., HouseNHL1966
Dubuque County JailNHL1972
Dubuque, Julien, MonumentNHL1988
Geo. M. VerityNHL1989
Hepburn, Col. William Peters, HouseNHL1973
Hitchcock, Rev. George B., HouseNHL1977
Knapp-Wilson HouseNHL1966
LonestarNHL1989
Merchants' National BankNHL1976
Old CapitolNHL1972
Pottawattamie County JailNHL1972
Reeve Electric Association PlantNHL1990
Sergeant FloydNHL1989
Sergeant Floyd MonumentNHL1966
Surf BallroomNHL2011
Show all 21 landmarks
Terrace HillNHL2003
Upper South HotelNHL1966
Van Allen StoreNHL1976
Weaver, James B., HouseNHL1975
William M. Black (dredge)NHL1982
Woodbury County CourthouseNHL1973

Newest listings

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  • 2026-07-01
    Chautauqua Park and Ridgewood Historic DistrictAmes
  • 2026-06-25
    Maytag Plant No. 1 Historic DistrictNewton
  • 2026-05-29
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  • 2026-05-21
    Samuel D. Butters HousePrairie City
  • 2026-05-21
    Harcourt Consolidated School GymnasiumHarcourt
  • 2026-02-23
    Lewis “Lew” J. Metcalf ResidenceStorm Lake
  • 2026-02-23
    Masonic Temple of WalnutWalnut