Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Turners Ranch (historical) | Locale | 2095 | Mono | 37 43 44 N | 118 48 00 W |
| Turnpike Shopping Center | Locale | 17 | Santa Barbara | 34 26 16 N | 119 47 27 W |
| Turntable Forest Service Facility | Locale | 356 | Shasta | 40 46 20 N | 122 18 35 W |
| Turtle Rock Campgrounds | Locale | 1854 | Alpine | 38 43 18 N | 119 48 20 W |
| Tuskatella Shopping Center | Locale | 73 | Orange | 33 48 37 N | 117 50 17 W |
| Tustin Heights Shopping Center | Locale | 39 | Orange | 33 44 48 N | 117 48 35 W |
| Tuttle Creek Campground | Locale | 1533 | Inyo | 36 33 54 N | 118 07 34 W |
| Twain Harte F D Fires Station | Locale | 1165 | Tuolumne | 38 02 37 N | 120 13 36 W |
| Twain Harte Golf Course | Locale | 1099 | Tuolumne | 38 02 03 N | 120 13 59 W |
| Twain Siding | Locale | 895 | Plumas | 40 01 01 N | 121 02 52 W |
| Tweedy Lake Club | Locale | 1204 | Los Angeles | 34 43 34 N | 118 34 02 W |
| Tweedy Marketplace Shopping Center | Locale | 32 | Los Angeles | 33 56 37 N | 118 11 53 W |
| Twentieth Century Fish and Gun Club | Locale | 68 | Kern | 35 41 50 N | 119 29 24 W |
| Twentieth Century Fox Studios | Locale | 89 | Los Angeles | 34 03 10 N | 118 24 42 W |
| Twentieth Century Fox Studios | Locale | 109 | Los Angeles | 34 05 49 N | 118 18 28 W |
| Twenty Ranch Gun Club (historical) | Locale | 13 | Orange | 33 41 59 N | 117 50 13 W |
| Twenty-Eight Gun Club | Locale | 70 | Tulare | 35 48 24 N | 119 22 33 W |
| Twentyeighth Street Pier | Locale | 2 | San Diego | 32 41 14 N | 117 08 19 W |
| Twentymile House | Locale | 1272 | Plumas | 39 51 05 N | 120 41 46 W |
| Twentynine Mile Guard Station | Locale | 1122 | El Dorado | 38 46 02 N | 120 21 20 W |
| Twentysix Camp (historical) | Locale | 843 | Fresno | 35 57 15 N | 120 17 00 W |
| Twentysixth Street Marine Terminal | Locale | 4 | San Diego | 32 39 15 N | 117 07 10 W |
| Twentytwo Mile House | Locale | 166 | Madera | 37 02 22 N | 119 46 53 W |
| Twin Bridges | Locale | 1260 | Lassen | 41 10 57 N | 121 09 50 W |
| Twin Bridges | Locale | 1539 | Mariposa | 37 44 00 N | 119 49 40 W |
| Twin Bridges Campground | Locale | 1461 | Shasta | 40 37 03 N | 121 28 06 W |
| Twin Creek Spreading Grounds | Locale | 398 | San Bernardino | 34 09 27 N | 117 15 59 W |
| Twin Forks Camp | Locale | 1110 | Ventura | 34 35 14 N | 119 09 46 W |
| Twin Forks Campsite | Locale | 1108 | Ventura | 34 35 15 N | 119 09 46 W |
| Twin Joshua Rancho (historical) | Locale | 780 | Los Angeles | 34 36 06 N | 118 03 16 W |
| Twin Lakes Campground | Locale | 2159 | Mono | 38 10 10 N | 119 19 24 W |
| Twin Lakes Campground | Locale | 2159 | Mono | 38 10 12 N | 119 19 25 W |
| Twin Lakes Campground | Locale | 2159 | Mono | 38 10 11 N | 119 19 25 W |
| Twin Lakes Golf Course | Locale | 92 | Los Angeles | 34 04 04 N | 118 00 18 W |
| Twin Lakes Golf Course | Locale | 6 | Santa Barbara | 34 26 15 N | 119 50 01 W |
| Twin Oaks Agoura Shopping Center | Locale | 275 | Los Angeles | 34 09 27 N | 118 45 27 W |
| Twin Oaks Valley Golf Course | Locale | 197 | San Diego | 33 10 01 N | 117 09 35 W |
| Twin Peaks Plaza Shopping Center | Locale | 180 | San Diego | 32 59 09 N | 117 03 36 W |
| Twin Pines Campground | Locale | 2050 | Ventura | 34 40 08 N | 118 57 06 W |
| Twin Pines Ranch | Locale | 1043 | Riverside | 33 52 06 N | 116 47 33 W |
| Twin Redwoods Trail Camp | Locale | 14 | Santa Cruz | 37 06 58 N | 122 16 08 W |
| Twin Rocks Ranger Station (historical) | Locale | 1062 | Mendocino | 39 47 20 N | 123 00 11 W |
| Twin Sisters Gun Club | Locale | 325 | Solano | 38 18 08 N | 122 09 09 W |
| Twin Valley Camp | Locale | 1769 | Los Angeles | 34 23 53 N | 117 44 19 W |
| Twisselmann Ranch | Locale | 282 | Kern | 35 33 05 N | 119 55 23 W |
| Two Bunch Palms | Locale | 295 | Riverside | 33 56 54 N | 116 29 18 W |
| Two Hundred and One Spur | Locale | 157 | Trinity | 40 06 07 N | 123 32 02 W |
| Two Hundred Eighty Metro Center Shopping Center | Locale | 86 | San Mateo | 37 40 40 N | 122 28 09 W |
| Two Shay Ranch | Locale | 927 | Los Angeles | 34 35 04 N | 118 21 19 W |
| Two Springs Campground (historical) | Locale | 1055 | Madera | 37 18 54 N | 119 33 54 W |
| TY G Ranch | Locale | 883 | Siskiyou | 41 50 39 N | 122 25 15 W |
| Tye-A-Lee Landing | Locale | 3 | Yolo | 38 19 57 N | 121 35 07 W |
| Tyler Creek Fire Control Station | Locale | 788 | Tulare | 35 52 54 N | 118 41 58 W |
| Tyler Mall Galleria Shopping Center | Locale | 231 | Riverside | 33 54 36 N | 117 27 27 W |
| Tyler Village Shopping Center | Locale | 234 | Riverside | 33 54 22 N | 117 27 18 W |
| Tyndall Creek Patrol Cabin | Locale | 3274 | Tulare | 36 38 00 N | 118 23 27 W |
| Tyndall Creek Ranger Station | Locale | 3288 | Tulare | 36 38 13 N | 118 23 26 W |
| Tyselling Shopping Center | Locale | 2 | Riverside | 33 42 47 N | 116 14 05 W |
| U Ranch (historical) | Locale | 23 | Marin | 38 01 04 N | 122 51 19 W |
| U-3 Ranch | Locale | 67 | Stanislaus | 37 51 01 N | 120 46 15 W |
| U'macha'tam'ma Environmental Campsites | Locale | 771 | Amador | 38 25 39 N | 120 38 22 W |
| Uhi Station | Locale | 1129 | Tulare | 35 53 09 N | 118 38 47 W |
| Ukiah Municipal Gas Works | Locale | 187 | Mendocino | 39 09 00 N | 123 12 09 W |
| Ukiah Municipal Golf Course | Locale | 220 | Mendocino | 39 09 17 N | 123 13 24 W |
| Ukiah Sewage Disposal | Locale | 177 | Mendocino | 39 06 49 N | 123 11 30 W |
| Ukiah Television Translator Station | Locale | 951 | Mendocino | 39 07 02 N | 123 05 39 W |
| Ukonom Ranger Station | Locale | 231 | Siskiyou | 41 23 12 N | 123 29 33 W |
| Ulbright | Locale | 1515 | Modoc | 41 39 17 N | 120 47 12 W |
| Una Palma | Locale | 133 | San Diego | 33 14 44 N | 116 07 08 W |
| Una Siding (historical) | Locale | 104 | Kern | 35 27 08 N | 119 12 43 W |
| Uncle Billys Cabin | Locale | 672 | Santa Cruz | 37 13 01 N | 122 05 10 W |
| Uncle Toms Cabin | Locale | 1559 | El Dorado | 38 55 46 N | 120 29 11 W |
| Undertakers Camp | Locale | 2052 | Siskiyou | 41 33 24 N | 121 31 56 W |
| Underwood Gun Club | Locale | 25 | Merced | 37 11 25 N | 120 50 22 W |
| Underwood Ranch (historical) | Locale | 25 | Merced | 37 11 30 N | 120 50 19 W |
| Union City Marketplace Shopping Center | Locale | 13 | Alameda | 37 35 18 N | 122 01 23 W |
| Union City Salt Works (historical) | Locale | 2 | Alameda | 37 35 30 N | 122 06 04 W |
| Union Flat Campground | Locale | 1027 | Sierra | 39 34 03 N | 120 44 41 W |
| Union Mill (historical) | Locale | 1204 | Inyo | 36 45 13 N | 118 03 22 W |
| Union Point | Locale | 1 | San Joaquin | 37 53 34 N | 121 29 14 W |
| Union Square Shopping Center | Locale | 64 | Santa Clara | 37 16 04 N | 121 55 47 W |
| Union Station | Locale | 86 | Los Angeles | 34 03 24 N | 118 14 08 W |
| Union Valley Powerhouse | Locale | 1355 | El Dorado | 38 51 52 N | 120 26 38 W |
| Uniontown Plaza Shopping Center | Locale | 6 | Humboldt | 40 51 56 N | 124 05 04 W |
| United Market Shopping Center | Locale | 103 | Tulare | 36 32 46 N | 119 22 57 W |
| United States Department of Agriculture Plant Introduction Garden | Locale | 68 | Butte | 39 42 18 N | 121 47 19 W |
| United States Dept Agriculture Horticultural | Locale | 95 | Fresno | 36 43 25 N | 119 43 03 W |
| United States Experimental Station | Locale | 94 | Fresno | 36 43 17 N | 119 42 57 W |
| United States Fishery Oceanography Center | Locale | 64 | San Diego | 32 52 16 N | 117 15 08 W |
| United States Forest Service Headquarters | Locale | 319 | Madera | 37 05 25 N | 119 43 20 W |
| United States Forest Service Outdoor Classroom | Locale | 1521 | Plumas | 40 19 10 N | 121 18 57 W |
| United States Forest Service Station | Locale | 870 | Los Angeles | 34 35 52 N | 118 43 19 W |
| United States Forest Service Station | Locale | 377 | Siskiyou | 41 15 30 N | 123 19 19 W |
| United States Forest Service Visitors Center | Locale | 1904 | El Dorado | 38 56 12 N | 120 03 16 W |
| United States Immigration Station | Locale | 4 | Los Angeles | 33 43 38 N | 118 16 08 W |
| United States Navy Golf Course | Locale | 36 | Monterey | 36 35 29 N | 121 51 49 W |
| United States Quarantine Station | Locale | 4 | Los Angeles | 33 43 20 N | 118 16 00 W |
| United States Veterans Administration | Locale | 104 | Los Angeles | 34 03 28 N | 118 27 19 W |
| United States Veterans Administration Center | Locale | 88 | Los Angeles | 34 03 14 N | 118 26 46 W |
| United States Weather Bureau Station | Locale | 1376 | Los Angeles | 34 44 37 N | 118 43 29 W |
| Universal City Studios | Locale | 176 | Los Angeles | 34 08 27 N | 118 21 23 W |
| Universal Gun Club | Locale | 69 | Kern | 35 40 54 N | 119 29 43 W |
| Universal Square Shopping Center | Locale | 100 | Los Angeles | 34 04 54 N | 118 04 35 W |
| University Camp | Locale | 1899 | San Bernardino | 34 10 26 N | 116 50 02 W |
| University Center Shopping Center | Locale | 298 | Riverside | 33 58 33 N | 117 20 40 W |
| University City Shopping Center | Locale | 105 | San Diego | 32 51 08 N | 117 12 53 W |
| University City Village Golf Course | Locale | 92 | San Diego | 32 50 58 N | 117 11 21 W |
| University Mall Shopping Center | Locale | 16 | Yolo | 38 32 52 N | 121 45 37 W |
| University of California Cow Camp | Locale | 2276 | El Dorado | 38 53 58 N | 120 14 24 W |
| University of California Forestry Camp | Locale | 1190 | Plumas | 39 55 08 N | 121 03 46 W |