Washington - Significance region: National
| 45DO1240 |
| 45DO1241 |
| 45DO1242 |
| ADVENTURESS |
| Alaska Trade Building |
| American and English Camps, San Juan Island |
| Arctic Building |
| ARTHUR FOSS (tugboat) |
| Bacon, George H., House |
| Boatman-Ainsworth Hose |
| Boeing, William E., House |
| Boundary Marker No. 1 |
| Building No. 105, Boeing Airplane Company |
| Cape Disappointment Historic District |
| Central Whidbey Island Historic District |
| Chatter Creek Guard Station |
| Chief Joseph Memorial |
| Chinook Point |
| Chittenden Locks and Lake Washington Ship Canal |
| Coke Ovens |
| Coliseum Theater |
| Cornish School |
| Covington House |
| Dodd House |
| DUWAMISH |
| Duwamish Number 1 Site |
| Early Winters Ranger Station Work Center |
| Eddy, James G., House and Grounds |
| EQUATOR (schooner) |
| Everest, Wesley, Gravesite |
| Ferry, Pierre P., House |
| FIREBOAT NO.1 |
| Fort Flagler |
| Fort Nisqually Granary and Factor's House |
| Fort Okanogan, Sites of |
| Fort Simcoe State Park |
| Fort Steilacoom |
| Fort Vancouver National Historic Site |
| Fort Walla Walla Historic District |
| Fort Ward Historic District |
| Fort Worden |
| Freeway Park |
| Gas Works Park |
| Glade Creek Site |
| Gold Coast Historic District |
| Goose Creek Rockshelter |
| Haller, Colonel Granville & Henrietta, House |
| Hanford B Reactor |
| Hanford Island Archeological Site |
| Hanford North Archeological District |
| Hansen, Julia Butler, House |
| Hoko River Rockshelter Archeological Site |
| Hoquiam Olympic Stadium |
| Hospital Reservation Historic District |
| House of Providence |
| Hudsons Bay Gristmill Site on Colville River |
| Hutton Building |
| Kettle Falls District |
| Klager, Hulda, Lilac Gardens |
| Klipsan Beach Life Saving Station |
| Kuhn Spit Archeological Site |
| LA MERCED |
| La Wis Wis Guard Station No. 1165 |
| Leavenworth Ranger Station |
| Lewis and Clark Trail-Travois Road |
| Lind Coulee Archaeological Site |
| Locke Island Archeological District |
| Longmire Buildings |
| Longmire Historic District |
| Lost Lake Guard Station |
| Manis Mastodon Site |
| Marine Reservation Historic District |
| Marmes Rockshelter |
| Merrill, R. D., House |
| Mesa 36 |
| Messenger of Peace Chapel Car |
| Mount Baker Theatre |
| Mount Rainier National Park |
| Natatorium Carousel |
| Naval Air Station (NAS) Seattle |
| Naval Military Hangar-University Shell House |
| Navy Yard Puget Sound |
| Nihon Go Gakko |
| Nippon Kan |
| Northern Pacific Office Building |
| North Fork Guard Station No. 1142 |
| Officers Row, Fort Vancouver Barracks |
| Officers' Row Historic District |
| Old Capitol Building |
| Old Indian Agency |
| Olympic Hotel |
| Ozette Indian Village Archeological Site |
| Palouse Canyon Archaeological District |
| Panama Hotel |
| Pangborn-Herndon Memorial Site |
| Pantages Theatre |
| Paradise Historic District |
| Paradise Inn |
| Paris Archeological Site |
| Pickett House |
Data from United States Park Service and Wikidata
