| Official name | Population | Area (acres)[2] | Location |
| Confederated Tribes of the Chehalis Reservation | 833 | 4,215 | Southeastern Grays Harbor County and southwestern Thurston County |
| Colville Indian Reservation | 9,353 | 1,400,000 | Primarily in the southeastern section of Okanogan County and the southern half of Ferry County |
| Cowlitz Reservation | 4,800 | 152 | Ridgefield, WA (Clark County) |
| Hoh Indian Reservation | 102 | 443 | The Pacific Coast of Jefferson County |
| Jamestown S'Klallam Indian Reservation | 594 | 12 | Near Sequim Bay, in extreme eastern Clallam County |
| Kalispel Indian Reservation | 470 | 4,629 | The town of Cusick, in Pend Oreille County |
| Lower Elwha Indian Reservation | 776 | 991 | The mouth of the Elwha River, in Clallam County |
| Lummi Indian Reservation | 6,590 | 21,000 | West of Bellingham, in western Whatcom County |
| Makah Indian Reservation | 1,356 | 27,950 | On Cape Flattery in Clallam County |
| Muckleshoot Indian Reservation | 3,300 | 3,850 | Southeast of Auburn in King County |
| Nisqually Indian Reservation | 588 | 4,800 | Western Pierce County and eastern Thurston County |
| Nooksack Indian Reservation | 1,800 | 2,500 | Town of Deming, Washington in western Whatcom County |
| Port Gamble Indian Reservation | 1,234 | 1,301 | Port Gamble Bay in Kitsap County |
| Port Madison Reservation (Suquamish Indian Reservation) | 507? | 7,486 | Western and northern shores of Port Madison, northern Kitsap County |
| Puyallup Indian Reservation | 4,000 | 18,061 | Primarily northern Pierce County |
| Quileute Indian Reservation | 371 | 1,003.4 | Southwestern portion of the Olympic Peninsula in Clallam County |
| Quinault Indian Nation | 2,535 | 208,150 | Primarily the north coast of Grays Harbor County |
| Samish Indian Reservation | 1,835 | 79 (Samish also owns another ~130 acres of non-trust land) | Anacortes |
| Sauk-Suiattle Indian Reservation | 200 | 96 | Near Darrington in southern Skagit County |
| Shoalwater Bay Indian Reservation | 70 | 334 | Along Willapa Bay in northwestern Pacific County |
| Skokomish Indian Reservation | 796 | 5,000 | Just north of Shelton in Mason County |
| Snoqualmie Indian Reservation | 650 | 56 | Snoqualmie Valley in east King and Snohomish Counties |
| Spokane Indian Reservation | 2,708 | 154,898 | Almost entirely in southern Stevens County and in northeastern Lincoln County along the Spokane River |
| Squaxin Island Indian Reservation | 936 | 1,979 | The entirely of Squaxin Island and the town of Kamilche in Mason County |
| Stillaguamish Indian Reservation | 237 | 40 | Along the Stillaguamish River in Snohomish County |
| Swinomish Indian Reservation | 3,228[3] | 7,169 | The southeastern side of Fidalgo Island in Skagit County |
| Tulalip Indian Reservation | 2,600 | 11,500 | Port Susan in western Snohomish County |
| Upper Skagit Indian Reservation | 200 | 99 | Western Skagit County near the towns of Sedro-Woolley and Burlington |
| Yakama Indian Reservation | 10,851 | 1,372,000 | Primarily in southern Yakima County and in the northern edge of Klickitat County |