Washington - Constructed - 1900–1909
| Aftermath Clubhouse |
| Alaska Trade Building |
| Amman |
| Ansorge Hotel |
| Ashford House |
| Axtell, Dr. William H. and Frances C., House |
| Bacon, George H., House |
| Ballard Carnegie Library |
| Bank of Starbuck |
| Berthusen Barn and Privy |
| Black, Alfred L., House |
| Chicago, Milwaukee, St. Paul and Pacific Railroad: South Cle Elum Yard |
| Colonnade Hotel |
| Daylight Building |
| Dearborn, Henry H., House |
| Fir Lodge |
| Frequency Changing Station |
| Garfield County Courthouse |
| Globe Hotel, The |
| Grays River Covered Bridge |
| Hjertoos, Andrew and Bergette, Farm |
| Holley-Mason Building |
| Hotel Laube |
| Hotel Sorrento |
| Humes Ranch Cabin (Boundary Increase) |
| Hutton Building |
| Immanuel School of Industries-Department of Public Welfare |
| Interrorem Guard Station-Olympic National Forest |
| Kemp & Hebert Building |
| Kestner Homestead |
| Lytle, Joseph, Home |
| Manito Park and Boulevard |
| Meese, Gustav, Building |
| Moore Theatre and Hotel |
| Mukilteo Light Station |
| Nippon Kan |
| Olson, Louis and Ellen, House |
| Pike Place Public Market Historic District |
| Queen Anne High School |
| Rainier Club |
| Snohomish County Courthouse |
| Spokane Club Building-Legion Building |
| Storm King Ranger Station |
| Vincent School |
| Washington Hall |
Data from United States Park Service and Wikidata
