All - Architectural style - Gothic Revival
| Hinds County Armory |
| Hiram Masonic Lodge No. 7 |
| Hise, Daniel Howell, House |
| Holley-Rankine House |
| Holy Angels Church |
| Holy Cross Church |
| Holy Cross Church |
| Holy Cross Church, Rectory and School |
| Holy Cross Episcopal Church |
| Holy Cross Roman Catholic Church |
| Holy Family Cathedral, Rectory, and School |
| Holy Family Catholic Church |
| Holy Innocents' Episcopal Church |
| Holy Name Cathedral |
| Holyoke City Hall |
| Holyoke-French House |
| Holy Rosary Church |
| Holy Rosary Church |
| Holy Rosary Church Rectory |
| Holy Trinity Church |
| Holy Trinity Church |
| Holy Trinity Church Complex |
| Holy Trinity Church (Protestant Episcopal) |
| Holy Trinity Episcopal Church |
| Holy Trinity Episcopal Church |
| Holy Trinity Episcopal Church |
| Honoka'a United Methodist Church |
| Hoover, James Stephen and Borland, Elizabeth, Memorial Chapel |
| Hopeful Lutheran Church |
| Hopewell Presbyterian Church |
| Horton, Capt. Charles, House |
| Hotel Chelsea |
| Hotel Warwick |
| Hot Springs High School |
| Houghton County Courthouse |
| House at 10410 Stanley Road |
| House at 114 Marble Street |
| House at 1170 San Bernard Street |
| House at 1400 Canterbury Street |
| House at 152 Suffolk Road |
| House at 197 Morrison Avenue |
| House at 203 Islington Road |
| House at 20 West 16th St. |
| House at 2212 Commonwealth Avenue |
| House at 322 Haven Street |
| House at 45 Claremont Avenue |
| House at 505 Court Street |
| House of Prayer Episcopal Church and Rectory |
| Howard, C. R., House |
| Howard Mortuary Chapel |
| Howell-Kohlhagen House |
| Howland Chapel School |
| Hudson, Alfred L., House |
| Huerfano County High School |
| Huey, Thomas, Farm |
| Hughes, Martin, House |
| Huguenot Church |
| Humason, Orlando, House |
| Hurst-Pierrepont Estate |
| Hutchings, A., House |
| Hyrum First Ward Meetinghouse |
| Immaculate Conception Catholic Church and Rectory |
| Immaculate Conception Church |
| Immaculate Conception Church and Rectory |
| Immaculate Conception Church, School, and Rectory |
| Immaculate Heart of Mary Catholic Church |
| Immanuel Episcopal Church |
| Immanuel Evangelical Church |
| Immanuel Evangelical Lutheran Church |
| Immanuel Lutheran Church |
| Immanuel Lutheran Church |
| Immanuel Lutheran Church |
| Indian Castle Church |
| Indianola High School |
| Indian Range |
| Indian Rock Schoolhouse |
| Ingleside |
| Inskeep, P. W., House |
| Ione City Centenary Church |
| Ipswich Baptist Church |
| Irving Baptist Church |
| Irvin, Robert, House |
| Isaqueena |
| Ivey-Ellington House |
| Jackson Street Missionary Baptist Church |
| Jackson-Swisher House and Carriage House |
| Jackson, Thomas J., Headquarters |
| Jacob's Church |
| Jefferson Chapel A.M.E. Church and Cemetery |
| Jefferson Union Church and Sweet Cemetery |
| Jenkins, Charles W., House |
| Jerseyville First Presbyterian Church |
| Johnson, C. E., House |
| Johnson, Juliet Trigg, House |
| Johnson, Martin, House |
| Johnson's Chapel AME Church |
| Johnston Hall |
| Jones, Frederick Issac and Mary M., House |
| Jones House |
| Jorden Hall |
Data from United States Park Service and Wikidata
