Spokan Indians were located on the Spokane and Little Spokane Rivers, southward to, and perhaps including, Cow Creek, and northward to include all of the northern feeders of the Spokane in the states of Idaho, Montana and 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.
Skin Indians were located on Columbia River from The Dalles to a point about 75 miles above in the present 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.
Satsop Indians were located on Satsop River, a branch of the Chehalis, in Washington State.
Samish Indians were located on Samish Bay and Samish Island, Guemes Island, and the northwest portion of Fidalgo Island. The Samish were later placed on Lummi Reservation.
Sahehwamish Indians were located on the innermost inlets of Puget Sound in Washington state.