CHINOOK LOWER TSINUK : Click for KATHLAMET or KIKSHT   Chinook Territory: The mouth of the Columbia River in the Pacific Northwest. Chinook Divisions: Chinook and Clatsop.   Portals .   Chinook Indian Nation : part of whose membership is Chinook Chinook, Washington   Clatsop Nehalem Confederated Tribes : part of whose membership is Chinook Turner, Oregon   Confederated Tribes of Siletz : part of whose membership is Chinook Siletz, Oregon   Quinault Indian Nation : part of whose membership is Lower Chehalis Taholah, Washington   Shoalwater Bay Indian Tribe: part of whose membership is Lower Chehalis Tokeland, Washington Chinook Population United States (2010) - 900 C H I N O O K A N