Washington - Area of significance: Agriculture
| Adair, William and Estella, Farm |
| Allen, Horatio and Laura, Farm |
| Anderson-Beletski Prune Farm |
| Arndt Prune Dryer |
| Bainbridge Island Filipino Community Hall |
| Barron, J. C., Flour Mill |
| Berthusen Barn and Privy |
| Bishop, Senator William, House and Office |
| Brackett, E. William, House |
| Buckner Homestead Historic District |
| Burbank Homestead Waterwheel |
| California Ranch |
| Canyon Grain Bin and Chutes |
| Central Whidbey Island Historic District |
| Clark County Poor Farm-Southwestern Washington Experiment Station |
| Clise, James W., House |
| Cloverfields |
| Collins House and Granary |
| Columbia Basin Project Irrigation Division Headquarters Office |
| Colvin House |
| Cornell Farmstead |
| Cottage Avenue Historic District |
| Donald House |
| Dougherty, John and Kate, Farmstead |
| Downtown Dayton Historic District |
| Dybdall Gristmill |
| Erickson, Jonas and Maria Lovisa, Farmstead |
| Fort Nisqually Site |
| Fort Vancouver National Historic Site |
| Gendron, O.J., Ranch |
| Gilbert, H. M., House |
| Goodman, Daniel, House |
| Green, Albert and Letha, House and Barn |
| Heilsberg, Gustave, Farm |
| Hjertoos, Andrew and Bergette, Farm |
| Hollywood Farm |
| Horan, Michael, House |
| Hovander Homestead |
| Hutton Settlement |
| Interior Grain Tramway |
| Irish, William N., House |
| Kamiakin's Gardens |
| LaFramboise Farmstead |
| Lucas Homestead |
| McCroskey, R. C., House |
| McGregor Ranch |
| Meyer, Heye H. and Eva, Farmstead |
| Moore, James, House |
| Mukai Cold Process Fruit Barrelling Plant |
| Neely, Sr., Aaron and Sarah, Farm |
| Nelson, Albert, Farmstead |
| Okanogan Project: Conconully Resevoir Dam |
| Olmstead Place State Park |
| Olson, Mary, Farm |
| Orr, Nathaniel, House and Orchard |
| Orton, Charles W., House |
| Palmer, Eben and Cynthia, Farmstead |
| Pickering Farm |
| Pietrzycki, Dr. Marcel, House |
| Pike Place Public Market Historic District |
| Pomeroy Farm |
| Reiman, Samuel and Katherine, House |
| Rice, L. N., House |
| Saturno-Breen Truck Garden |
| Sawyer, W. P., House And Orchard |
| Seivers Brothers Ranchhouse and Barn |
| Skamokawa Historic District |
| Smith, Hiram F., Orchard |
| Smith, Peter, Farm-Donation Land Claim |
| Spokane Flour Mill |
| Strap Iron Corral |
| Sutton Barn |
| Tekoa Grain Company Elevator & Flathouse |
| Underwood, Edward and Isabelle, Farm-Five Oaks Farm |
| Van Arsdol, C. C., House |
| Vancouver National Historic Reserve Historic District |
| Waitsburg Historic District |
| Wells House |
| Whitcomb Cabin |
| Whitman Mission National Historic Site |
| Wilke Farmhouse |
| Williams, Herbert, House |
| Williams, Sidney, House |
| Winningham Farm |
| Winters, Frederick W., House |
| Woodstock Farm |
| Woolrey-Koehler Hop Kiln |
| Yakima Valley Transportation Company |
Data from United States Park Service and Wikidata
