New York - Significance region: Local
| Hovey, Charles C., House and Strong Leather Company Mill |
| Howard Homestead |
| Howard Mansion and Carriage House |
| Howard-Odmin-Sherman Farmstead |
| Howe, Dr. John Quincy, House |
| Howell, Edgar W., House |
| Howell, F. M., and Company |
| How, James and Fanny, House |
| Howland, Augustus, House |
| Howland, Charles- William H. Chase House |
| Howland Cobblestone Store |
| Howland Library |
| Howland, Slocum and Hannah, House |
| Hubbard Hall |
| Hubbard, Hiram, House |
| Hubbard House |
| Hubbell Family Farm and Kelly's Corners Cemetery |
| Hudson Falls Historic District |
| Hudson Historic District |
| Hudson Theatre |
| Hudson View Gardens |
| Huffman, William, Cobblestone House |
| Hughson Mansion |
| Huguenot Schoolhouse |
| Hulburt, Thomas L., House |
| Hull, Warren, House |
| Humphrey, Friend, House |
| Hunter-Oliphant Block |
| Hunters Point Historic District |
| Hunter Synagogue |
| Hunt, George and John R., Memorial Building |
| Huntington Building, The |
| Huntington, Ezra A., House |
| Huntley Apartments |
| Hunts Point Rail Station |
| Hunziker House |
| Hurricana Stock Farm |
| Hurst-Pierrepont Estate |
| Hustis House |
| Hutchinson Homestead |
| Huyler Building, The |
| Hyatt, Caleb, House |
| Hyde Hall Covered Bridge |
| Hyde House |
| Hyde Park Elementary School |
| Hyde Park Firehouse |
| Hyde Park Railroad Station |
| Illinois Alcohol Company Building |
| Immaculate Conception Roman Catholic Church Complex |
| Immanuel Baptist Church |
| Immanuel Congregational Church |
| Immanuel Union Church |
| Indian Brook Road Historic District |
| Indian Castle Village Site |
| Indian Rock Schoolhouse |
| Industrial Complex at 221 McKibbin Street |
| Ingham, William Smith, House |
| Ingleside |
| Ingleside Home |
| Inglewood and Thurston Historic District |
| Insurance Company of North America Building |
| International House |
| International Paper Administration Building and Time Office |
| International Shirt and Collar Company |
| IOOF Hall |
| Ireland-Gardiner Farm |
| IRT Broadway Line Viaduct |
| Irvington Historic District |
| Irvington Town Hall |
| Irving, Washington, High School |
| Irwin Brothers Store |
| Irwin, W.P., Bank Building |
| Italian Community Bake Oven |
| Italy Valley Methodist Church |
| Ithaca Downtown Historic District |
| Ithaca Gas and Electric Corporation Building |
| Ithaca Pottery Site |
| Ives, Dr. John, House |
| Ivey Delph Apartments |
| Jackson-Aitken Farm |
| Jackson Heights Historic District |
| Jackson, John II, House |
| Jackson-Perkins House |
| Jackson, Samuel and Elbert, House |
| Jacob Riis Park Historic District |
| Jagger House |
| Jamaica Chamber of Commerce Building |
| Jamaica Savings Bank |
| Jamesport Meeting House |
| Jamestown Armory |
| Jamestown Downtown Historic District |
| Jamieson and McKinney Block |
| Jansen, Johannes, House and Dutch Barn |
| Jansen, Thomas, House |
| Jarvis-Fleet House |
| Java School No. 1 |
| Jayne and Mason Bank Building |
| Jayne, William C., House |
| Jefferson Apartment Building |
| Jefferson Historic District |
Data from United States Park Service and Wikidata
