Indiana - Criteria: A (event)
| Harmony Way Bridge |
| Harriett |
| Harry Evans Bridge |
| Hartford City Courthouse Square Historic District |
| Haubstadt State Bank |
| Haughville Historic District |
| Haven Hubbard Home |
| Haw Creek Leather Company |
| Hawthorne Branch Library No. 2 |
| HCS Motor Car Company |
| Heagy, D.W., Farm |
| Hedden's Grove Historic District |
| Heier's Hotel |
| Helton-Mayo Farm |
| Heminger Travel Lodge |
| Hendricks County Jail and Sheriff's Residence |
| Hendricks County Poor Asylum |
| Hendricks, Thomas A., Library |
| Henley, Henry, Public Library |
| Heritage Hall |
| Hermitage, The |
| Herriott House |
| Herron-Morton Place Historic District |
| Hesler, Clinton F., Farm |
| Hicksite Friends Meetinghouse (Wayne County Museum) |
| Highland Park Neighborhood Historic District |
| Hill Crest Community Center |
| Hillcrest Country Club |
| Hills and Dales Historic District |
| Hill, William, Polygonal Barn |
| Hinkle-Garton Farmstead |
| Hinkle, W. R., and Co. |
| Hobart Commercial District |
| Hoffman Hotel |
| Hofherr, Martin, Farm |
| Hoham-Klinghammer-Weckerle House and Brewery Site |
| Hohman Avenue Commercial Historic District |
| Holliday Hydroelectric Powerhouse and Dam |
| Hollingsworth House |
| Holy Rosary-Danish Church Historic District |
| Homecroft Historic District |
| Home Laundry Company |
| Homestead Hotel |
| Hominy Ridge Shelter House |
| Honey Creek School |
| Honeywell Studio |
| Hoosier Theater Building |
| Hoover, Eli, House and Confectionary |
| Hope Historic District |
| Horace Mann Historic District |
| Hose House No. 10 |
| Hose House No. 12 |
| Hotel LaFontaine |
| Hotel Washington |
| Howard Home |
| Howard Masonic Temple |
| Howard Park Historic District |
| Howard School |
| Hoyt, Lyman and Asenath, House |
| Huber Motor Sales Building |
| Huddleston House Tavern, The |
| Huffman Mill Covered Bridge |
| Huntingburg Commercial Historic District |
| Huntingburg Town Hall and Fire Engine House |
| Huntington Courthouse Square Historic District |
| Hy-Red Gasoline Station |
| I and M Electric Co. Buidling-Transformer House and Garage |
| Iddings-Gilbert-Leader-Anderson Block |
| Illinois Central Railroad Freight Depot |
| Illsley Place-West Rudisill Historic District |
| Independence Historic District |
| Independence Methodist Church |
| Indiana Avenue Historic District |
| Indiana Harbor Public Library |
| Indiana Limestone Company Building |
| Indiana Oxygen Company |
| Indianapolis Athletic Club |
| Indianapolis City Hall, Old |
| Indianapolis Fire Headquarters and Municipal Garage |
| Indianapolis Masonic Temple |
| Indianapolis Motor Speedway |
| Indianapolis News Building |
| Indianapolis Park and Boulevard System |
| Indianapolis Public Library Branch No. 3 |
| Indianapolis Public Library Branch No. 6 |
| Indianapolis Union Railroad Station |
| Indianapolis Union Station-Wholesale District |
| Indianapolis Veterans Administration Hospital |
| Indianapolis White Castle Number 3 |
| Indiana School for the Deaf |
| Indiana Soldiers' and Sailors' Children's Home |
| Indiana State Capitol |
| Indiana State Federation of Colored Women's Clubs |
| Indiana State Highway Bridge 42-11-3101 |
| Indiana State Library and Historical Building |
| Indiana State Soldiers Home Historic District |
| Indiana Theatre |
| Indian Village Historic District |
| Indi-Illi Park Historic District |
| Irvington Historic District |
Data from United States Park Service and Wikidata
