California - Area of significance: Transportation
| Mineral King Road Cultural Landscape |
| Mojave Road |
| Mountain House Historic District |
| Mount Lowe Railway |
| M.V. SANTA ROSA |
| Napa Valley Railroad Depot |
| NCO Railway Depot |
| Nevada-California-Oregon Railway Co. General Office Building |
| Niagara Camp |
| Niles Canyon Transcontinental Railroad Historic District |
| Nobles Emigrant Trail |
| NORLINA (shipwreck and remains) |
| Oak Grove Butterfield Stage Station |
| Old Point Loma Lighthouse |
| Old Sacramento Historic District |
| Old Santa Susana Stage Road |
| Old Towne Orange Historic District |
| Olinsky Building |
| Ontario and San Antonio Heights Waiting Station |
| Orange Cove Santa Fe Railway Depot |
| Pacific Electric Building |
| Pacific Electric Etiwanda Depot |
| Pacific Electric Railway Company Depot |
| Pacific Electric Railway Company Substation No. 8 |
| Pacific Electric Sub-Station No. 14 |
| Perris Depot |
| Petaluma and Santa Rosa Railway Powerhouse |
| Phillips Mansion |
| Pickwick Hotel |
| Piedras Blancas Light Station |
| Pier One |
| Pigeon Point Lighthouse |
| Pilarcitos Creek Bridge |
| Pinkham, Capt. George, House |
| Piute Pass Archeological District |
| Plaza Substation |
| Point Arena Light Station |
| Point Bonita Light Station |
| Point Cabrillo Light Station |
| Point Conception Light Station |
| Point Fermin Historic District |
| Point Montara Light Station |
| Point Pinos Lighthouse |
| Point Reyes Lifeboat Rescue Station, 1927 |
| Point Reyes Light Station |
| Point Sur Light Station |
| Pomona City Stable |
| Port of San Francisco Embarcadero Historic District |
| Providence Townsite |
| Punta Gorda Light Station |
| Railroad Square District |
| Rains, John, House |
| Redlands Central Railway Company Car Barn |
| Redlands Santa Fe Depot District |
| Redwood Highway |
| Ridge Route, Old |
| Ryan Historic District |
| Sacramento Northern Railway Historic District |
| Sacramento Shops Historic District |
| Saint Helena Southern Pacific Railroad Depot |
| Saline Valley Salt Tram Historic Structure |
| Salt Point Landing Historical and Archaeological District |
| San Francisco and North Pacific Railroad Station House-Depot |
| San Francisco Cable Cars |
| San Gregorio House |
| San Luis Obispo Light Station |
| San Pedro, Los Angeles, & Salt Lake RR Depot |
| San Pedro Municipal Ferry Building |
| Santa Clara Depot |
| Santa Fe Depot |
| Santa Fe Freight Depot |
| Santa Fe Passenger and Freight Depot |
| Santa Fe Passenger Depot |
| Santa Fe Railway Passenger and Freight Depot |
| Saticoy Southern Pacific Railroad Depot |
| Sebastopol Depot of the Petaluma and Santa Rosa Railway |
| Sierra Railway Shops Historic District |
| SILVERGATE (FERRY) |
| Southern Hotel |
| Southern Pacific 16th Street Station and 16th Street Tower |
| Southern Pacific Company Hospital Historic District |
| Southern Pacific Depot |
| Southern Pacific Depot |
| Southern Pacific Depot |
| Southern Pacific Passenger Depot |
| Southern Pacific Railroad Company's Sacramento Depot |
| Southern Pacific Railroad Depot, Whittier |
| Southern Pacific Railroad Section Superintendent House |
| Southern Pacific Railroad Station |
| Southern Pacific Train Depot |
| Space Launch Complex 10 |
| S.S. CATALINA |
| SS POMONA (Shipwreck) |
| SS Red Oak Victory (victory ship) |
| SS RIO DE JANEIRO Shipwreck |
| SS WINFIELD SCOTT (Steamship) |
| STAMBOUL (Whaling Bark) |
| Stanford-Lathrop House |
| Station and General Office, California Southern Railroad |
| Steamship TENNESSEE Remains |
Data from United States Park Service and Wikidata
