California - Significance region: Local
| St. Paul's Methodist Episcopal Church |
| Straight, Charles E., House |
| Strand Theater |
| St. Raymond's Church |
| Streetcar Depot |
| Stroschein, Carl, House |
| Strout, George A., House |
| St. Thomas Aquinas Chapel |
| Studio Building |
| St. Vincent Orphanage and School Building |
| Subway Terminal Building |
| Sugar Pine Point State Park |
| Suisun Masonic Lodge No. 55 |
| Sulphur Creek Archeological District |
| Summit Lake Ranger Station |
| Sunrise High Sierra Camp |
| Sunset Towers |
| Superior Oil Company Building |
| Susanville Railroad Depot |
| Suscol House |
| Sutherland Fruit Company |
| Sutter Club |
| Swain, C.W., House |
| Swartz Creek Bridge on Aetna Springs Road |
| Swasey Discontiguous Archeological District |
| Sweasey Theater-Loew's State Theater |
| Swedish American Hall |
| Sweed, Philip, House |
| Sweet, A. H., Residence and Adjacent Small House |
| Sweet House |
| Sweetser Residence |
| Synder, John J., House |
| Tahoe Meadows |
| Talmadge Park Estates Historic District |
| Taoist Temple |
| Tassajara One Room School |
| Taylor, Duckworth and Company Foundry Building |
| TB-9 |
| Tehachapi Railroad Depot |
| Temple Mansion |
| Temple Sherith Israel |
| Textile Center Building |
| Thacher School Historic District |
| Tharp's Log |
| The Bellevue-Staten |
| The Last Resort Historic District |
| The Real Estate Associates (TREA) Houses |
| "Thomas, Franklin Rosborough ""Frank"", House" |
| Thomas House |
| Thomas Place Corral |
| Thorn House |
| Tidball Store |
| Timby House |
| Tioga Hotel |
| Tioga Pass Entrance Station |
| Tishawnik |
| Title Guarantee and Trust Company Building |
| Toad Hall |
| Toberman, C. E., Estate |
| Tobin House |
| Tocaloma Bridge |
| Tomales Presbyterian Church and Cemetery |
| Torrance School |
| Torrey, Joseph and Carrie, House |
| Toverii Tuppa |
| Tower House District |
| Tower House-Soo-Yeh-Choo-Pus |
| Tower Theatre |
| Town Creek Archeological Site |
| Town House, The |
| Track Bus No. 19 |
| Tracy City Hall and Jail |
| Tracy Inn |
| Tramway Gas Station |
| Travelers' Hotel |
| Treadwell Mansion and Carriage House |
| Tretheway Block |
| Tribune-Republic Building |
| Trimmer Hill |
| Trinity Church |
| Trinity Presbyterian Church |
| Trower, Charles, House |
| Troy Laundry |
| Truckee Veterans Memorial Building |
| Truxaw-Gervais House |
| Tubbs Cordage Company Office Building |
| Tucker House |
| Tufts, Joshua B., House |
| Tulare Union High School Auditorium and Administration Building |
| Tuolumne County Courthouse |
| Tuolumne County Jail |
| Tuolumne Meadows |
| Tuolumne Meadows High Sierra Camp |
| Tuolumne Meadows Ranger Stations and Comfort Stations |
| Tupper and Reed Building |
| Turlock Carnegie Library |
| Turlock High School Auditorium and Gymnasium |
| Twentieth Street Historic District |
| Twenty-eighth Street YMCA |
| Twin Lakes Fire Tool Cache |
Data from United States Park Service and Wikidata
