Oregon - Criteria: A (event)
| Sumpter Valley Railway Passenger Station |
| Superintendent's House |
| Supervisor's House No. 1001 |
| Sutherlin Bank Building |
| Svenson Blacksmith Shop |
| Swanson, Norman and Frances, House |
| Swedish Evangelical Mission Covenant Church |
| Swetland Building |
| Swigert, Ernest G., House |
| Telegram Building |
| Ten Mile Creek Bridge No. 01181 |
| Terwilliger Parkway |
| The Big 'O' |
| The Dalles Civic Auditorium |
| The Dalles Commercial Historic District |
| Thomas Creek-Gilkey Covered Bridge |
| Thomas Creek-Shimanek Covered Bridge |
| Thompson, Al and Son's, Feed and Seed Company |
| Thompson Court Apartments |
| Thompson, John L., House |
| Tigard, John W., House |
| Tillamook Rock Lighthouse |
| Tiller Ranger Station |
| Timberline Lodge |
| Torgler, Frederick, Building |
| Town Club, The |
| Trevitt's Addition Historic District |
| Trinity Episcopal Church |
| Trinity Episcopal Church |
| Troutdale Methodist Episcopal Church |
| Troy Laundry Building |
| Tualatin Academy |
| Umatilla County Library |
| Umpqua River Bridge No. 01822 |
| Umpqua River Light House |
| Union Creek Historic District |
| Union Fishermen's Cooperative Packing Company Alderbrook Station |
| Union Main Street Historic District |
| Union Street Railroad Bridge and Trestle |
| Uniontown-Alameda Historic District |
| United Presbyterian Church of Shedd |
| Unity Bridge |
| Unity Ranger Station |
| University Club |
| University of Oregon Library and Memorial Quadrangle |
| Upper Ditch |
| Upper Sandy Guard Station Cabin |
| US Coast Guard Station-Tillamook Bay |
| U.S. Customhouse |
| US National Bank Building |
| US Naval Air Station Dirigible Hangar B |
| U.S. Post Office |
| U.S. Post Office and Courthouse |
| USS LCI-713 (Landing Craft) |
| Vale Drug Store |
| Vale Hotel and Grand Opera House |
| Valley Theater |
| Vancouver Avenue First Baptist Church |
| View Point Inn |
| Villard Hall |
| Villa St. Rose |
| Vinsonhaler Blacksmith Shop |
| Vista Avenue Viaduct |
| Vista House |
| Waggener, JS and Melinda, Farmstead |
| Waldo Block |
| Walker Naylor Historic District |
| Waller Hall, Willamette University |
| Wallowa County Chieftain Building |
| Wallowa County Courthouse |
| Wallowa Ranger Station |
| Washburne Historic District |
| Washington High School |
| Watchman Lookout Station No. 68 |
| Waucoma Hotel |
| Weinhard Brewery Complex |
| Wendling Bridge |
| West Coast Woods Model Home |
| West, Nathaniel, Buildings |
| West Salem City Hall, Old |
| West's Block |
| Whaleback Snow-Survey Cabin |
| Wheeler Ridge Japanese Bombing Site |
| Whisky Creek Cabin |
| Whitney and Gray Building and Jake's Famous Crawfish Restaurant |
| Wigle Cemtery |
| Wilcox Building |
| Wildcat Creek Bridge |
| Wilder Apartments |
| Willakenzie Grange Hall |
| Willamette Falls Locks |
| Willamette National Cemetery |
| Willamette Station Site, Methodist Mission in Oregon |
| Willamette Valley and Coast Railroad Depot-Corvallis |
| Williams Avenue YWCA |
| Willow Prairie Cabin |
| Wilson River Bridge No. 01499 |
| Wilson, William T.E., Homestead |
| Wilson, Woodrow, Junior High School |
| Winchester Dam |
Data from United States Park Service and Wikidata
