California - Area of significance: Architecture
| Hearst Gymnasium for Women |
| Hearst Memorial Mining Building |
| Hearst San Simeon Estate |
| Heart of Bankers Hill Historic District |
| Heilbron House |
| Heilman Villas |
| Heinold's First and Last Chance Saloon |
| Heinsbergen Decorating Company Building |
| Held-Poage House |
| Helena Historic District |
| Helios Ranch |
| Heller Estate |
| Helme-Worthy Store and Residence |
| Henessey, Dr. Edwin, House |
| Hensley Historic District |
| Herald Hotel |
| Heritage House |
| Hermitage |
| Hetebrink House |
| Hicks House |
| Higgins Building |
| Highland-Camrose Bungalow Village |
| Highland Historic District |
| Highland Park Masonic Temple |
| Highland Park Police Station |
| Hihn Building |
| Hilgard Hall |
| Hill-Carrillo Adobe |
| Hillmont |
| Hillside School |
| Hinds, A. J., House |
| Hinds Hotel |
| Hines House |
| Hobart Building |
| Hockett Meadow Ranger Station |
| Hodgdon Homestead Cabin |
| Hofer Ranch |
| Hofman, Charles, House |
| Hofmann, Arthur and Mona, House |
| Hogan House |
| "Holbrook-Palmer Estate, ""Elmwood""" |
| Hollister Carnegie Library |
| Holloway, Edgar, House |
| Hollywood Boulevard Commercial and Entertainment District |
| Hollywood Cemetery |
| Hollywood High School Historic District |
| Hollywood Masonic Temple |
| Hollywood Melrose Hotel |
| Hollywood Palladium |
| Hollywood Studio Club |
| Hollywood Western Building, The |
| Holmes-Shannon House |
| Holy Trinity Armenian Apostolic Church |
| Home Economics Building |
| Home Laundry |
| Honey Run Covered Bridge |
| Honigsberger Store |
| Hood, Mrs. J.H., House |
| Hoopa Valley Adobe |
| Hoover Hotel |
| Hoover, Lou Henry, House |
| Hope, Thomas, House |
| Horatio West Court |
| Horseshoe Lake Ranger Station |
| Hospital Bridge |
| Hostess House |
| Hotel Arcata |
| Hotel Californian |
| Hotel Chancellor |
| Hotel Covell |
| Hotel Del Coronado |
| Hotel Fresno |
| Hotel Glendale |
| Hotel Green |
| Hotel La Rose |
| Hotel Lenhart |
| Hotel Macdoel |
| Hotel Mayfair |
| Hotel Menlo |
| Hotel Metropole |
| Hotel Montgomery |
| Hotel Regis |
| Hotel Rosslyn Annex |
| Hotel Sainte Claire |
| Hotel San Clemente |
| Hotel Senator |
| Hotel St. Matthew |
| Hotel Stockton |
| House at 1011 S. Madison Ave. |
| House at 1015 Prospect Boulevard |
| House at 1050 S. Madison Ave. |
| House at 1111 North Los Robles Avenue |
| House at 1121 North Los Robles Avenue |
| House at 1141 North Chester Avenue |
| House at 1233 Wentworth Ave. |
| House at 1239-1245 Scott Street |
| House at 1240 North Los Robles |
| House at 1249-1251 Scott Street |
| House at 1254-1256 Montgomery Street |
| House at 1321 Scott Street |
Data from United States Park Service and Wikidata
