California - Significance region: Local
| Hamrick House |
| Hansen Bridge |
| Hansen, George, House |
| Hard, Roswell Butler, House |
| Harlow, William, Cabin |
| Harmon-McNeil House |
| Harmony Grove Church |
| Harnetiaux Court |
| Harpel, Willis, House |
| Harrier, Daniel Webster, House |
| Harrison and Fifteenth Sts. Historic District |
| Harrison House |
| Harrower Laboratory and Clinic |
| Hart Building |
| Hartwell, John S. House |
| Harvey, Leo M., House |
| Haskett Court |
| Haslett Warehouse |
| Hastings Adobe |
| Hathaway, Anne, Cottage |
| Hatt Building |
| Hattie (Gold Bug), Priest and Silver Pine Mines and Stampmill |
| Haviland Hall |
| Hawkins, Joel and Rena, House |
| Hawthorne Inn |
| Hayes Mansion |
| Hazel Hotel |
| Healdsburg Carnegie Library |
| Healdsburg Memorial Bridge |
| Heart of Bankers Hill Historic District |
| Heathcote-MacKenzie House |
| Heilman Villas |
| Held-Poage House |
| Helena Historic District |
| Helios Ranch |
| Helme-Worthy Store and Residence |
| Hendrick, William T., House |
| Henessey, Dr. Edwin, House |
| Hensley Historic District |
| Herald Hotel |
| Heritage House |
| Hermitage |
| Hershell-Spillman Merry-Go-Round |
| Hetch Hetchy Railroad Engine No.6 |
| Hetebrink House |
| Hewes, David, House |
| Hicks House |
| Higgins Building |
| Highland-Camrose Bungalow Village |
| Highland Historic District |
| Highland Park Masonic Temple |
| Highland Park Police Station |
| Highway 152 Tree Row |
| Hihn Building |
| Hill-Carrillo Adobe |
| Hillcrest Park |
| Hillmont |
| Hillside School |
| Hinds, A. J., House |
| Hinds Hotel |
| Hines House |
| Hockett Meadow Ranger Station |
| Hodgdon Homestead Cabin |
| Hofer Ranch |
| Hofman, Charles, House |
| Hogan House |
| "Holbrook-Palmer Estate, ""Elmwood""" |
| Hollister Carnegie Library |
| Holloway, Edgar, House |
| Holly Street Livery Stable |
| Hollywood Argyle Apartments |
| Hollywood Bowl |
| Hollywood High School Historic District |
| Hollywood Masonic Temple |
| Hollywood Melrose Hotel |
| Hollywood Palladium |
| Hollywood Western Building, The |
| Holmes-Shannon House |
| Holy Trinity Armenian Apostolic Church |
| Holy Trinity Church |
| Holzwasser-Walker Scoot Building and Owl Drug Building |
| Home Economics Building |
| Home Laundry |
| Hood, Mrs. J.H., House |
| Hoopa Valley Adobe |
| Hoover Hotel |
| Hope, Thomas, House |
| Hornitos Masonic Hall No. 98 |
| Horseshoe Lake Ranger Station |
| Hospital Bridge |
| Hotel Arcata |
| Hotel Californian |
| Hotel Californian |
| Hotel Chancellor |
| Hotel Charlotta |
| Hotel Charlotte |
| Hotel Chauvet |
| Hotel Covell |
| Hotel Fresno |
| Hotel Glendale |
Data from United States Park Service and Wikidata
