California - Area of significance: Architecture
| Glen Park BART Station |
| Glen Tavern Hotel |
| Glide Memorial Church |
| Goethe House |
| Golden Gate Park Conservatory |
| Golden Gate Theater |
| Golden Gate Villa |
| Golden Sheaf Bakery |
| Golden State Mutual Life Insurance Building |
| Goldschmidt House |
| Goleta Depot |
| Gonzalez, Rafael, House |
| Goodman Building |
| Goodman, George E., Jr., House |
| Goodman, George E., Mansion |
| Goodman Library |
| Gordon Building |
| Gosby House Inn |
| Gould-Shaw House |
| Gould, Thomas, Jr., House |
| Grace Episcopal Church |
| Granada Shoppes and Studios |
| Grand Central Air Terminal |
| Grand-Horton Hotel |
| Grand Island Shrine |
| Grandma Prisbrey's Bottle Village |
| Grand Union Hotel |
| Granger Hall |
| Grant, U.S. Hotel |
| Grass Valley Public Library |
| Great Sierra Mine Historic Site |
| Greek Orthodox Church of the Assumption |
| Green Brae Brick Yard |
| Greene, John T., House |
| Green Gables |
| Green Gables-Fleischhacker, Mortimer, Country House |
| Greenmeadow |
| Green-Rankin-Bembridge House |
| Green Shutter Hotel |
| Grether and Grether Building |
| Greystone Cellars |
| Greystone Villa-Cabin 18 |
| GRIFFING'S, FREDERICK, (ship) |
| Griffin, Willard, House and Carriage House |
| Griffith House |
| Griswold House |
| Grizzly Bluff School |
| Groezinger Wine Cellars |
| Groshon, Sid, House |
| Gross, Courtlandt, House |
| Groveland Hotel |
| Guaranty Building |
| Gushaw-Mudgett House |
| Guthrie House |
| Haas Candy Factory |
| Haas-Lilienthal House |
| Hacienda Arms Apartments |
| Hackett, Edward Alexander Kelley, House |
| Hackett House |
| Hafley, Olan G. and Aida T., House |
| Hagemann Ranch Historic District |
| Haines, Alfred, House |
| Hakone Historic District |
| Hale Brothers Department Store |
| Hale House |
| Hale Solar Laboratory |
| Halifax Apartments |
| Hallidie Building |
| Hall of Transportation, Treasure Island |
| Haman House |
| Hamilton Army Air Field Discontiguous Historic District |
| Hamilton, Capt. James A., House |
| Hamrick House |
| Hanford Carnegie Library |
| Hanna-Honeycomb House |
| 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 House |
| Hart Building |
| Hartwell, John S. House |
| Harvey House Railroad Depot |
| Harvey, Leo M., House |
| Haskett Court |
| Haslett Warehouse |
| Hathaway, Anne, Cottage |
| Havens, Weston, House |
| Haviland Hall |
| Hawkins, Joel and Rena, House |
| Hawkins-Nimocks Estate-Patricio Ontiveros Adobe |
| Hawthorne Inn |
| Hayes Mansion |
| Hazel Hotel |
| Healdsburg Carnegie Library |
| Hearst Greek Theatre |
Data from United States Park Service and Wikidata
