Swinomish Indians were located on the northern part of Whidbey Island and about the mouth of Skagit River in the present state of Washington.
Swallah Indians were located on Orcas Island and San Juan Island in the present state of Washington, and the group to which they belong.
Squaxon Indians were located on North Bay, Puget Sound, Washington.
Snoqualmie Indians were located on Snoqualmie and Skykomish Rivers in the present state of Washington.
Snohomish Indians were located on the lower course of Snohomish River and on the southern end of Whidbey Island in the present day State of Washington.
Skagit Indians were located on Skagit and Stillaguamish Rivers except about their mouths in the present state of Washington.
Senijextee Indians were located on both sides of the Columbia River from Kettle Falls to the Canadian boundary, the valley of Kettle River, Kootenay River from its mouth to the first falls, and the region of the Arrow Lakes, B. C. The Lake Indians on the American side were placed on Colville Reservation.
Semiahmoo Indians were located about Semiahmoo Bay in northwest Washington and southwest British Columbia.