In Washington:
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Chehalis Confederated Tribes.
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Colville Confederated Tribes.
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Cowlitz Tribe.
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Hoh Tribe.
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Jamestown S'Kallam Tribe.
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Kalispel Tribe.
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Lower Elwha Klallam Tribe.
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Lummi Nation.
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Makah Tribe.
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Muckleshoot Tribe.
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Nisqually Tribe.
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Nooksack Tribe.
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Port Gamble S'Klallam Tribe.
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Puyallup Tribe.
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Quileute Tribe.
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Quinault Nation.
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Samish Nation.
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Sauk-Suiattle Tribe.
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Shoalwater Bay Tribe.
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Skokomish Tribe.
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Snoqualmie Tribe.
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Spokane Tribe.
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Squaxin Island Tribe.
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Stillaguamish Tribe.
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Suquamish Tribe.
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Swinomish Tribe.
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Tulalip Tribes.
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Upper Skagit Tribe.
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Yakama Nation Confederated Tribes.
In Idaho or Oregon:
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Coeur d'Alene Tribe.
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Grand Ronde Community of Oregon Confederated Tribes.
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Kootenai Tribe.
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Nez Perce Tribe.
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Umatilla Confederated Tribes.
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Warm Springs Confederated Tribes.
An up-to-date list of federally recognized Indian tribes in the state of Washington is available online from the Governor's Office of Indian Affairs.