Listed in order going downstream:

• British Columbia:
  • Headwaters to the Canada–United States border:
    • Canal Flats
    • Fairmont Hot Springs
    • Windermere
    • Invermere
    • Radium Hot Springs
    • Spillimacheen
    • Golden
    • Mica Creek
    • Revelstoke
    • Nakusp
    • Castlegar
    • Trail
• Washington:
  • Canada–United States border to Grand Coulee Dam:
    • Northport
    • Kettle Falls
    • Inchelium
    • Grand Coulee
    • Coulee Dam
  • Grand Coulee Dam to Wenatchee:
    • Elmer City
    • Bridgeport
    • Brewster
    • Pateros
    • Entiat
    • West Wenatchee
  • Wenatchee
  • East Wenatchee
  • South Wenatchee
  • South Wenatchee to Wallula:
    • Rock Island
    • Vantage
    • Desert Aire
    • Richland
    • Kennewick
    • Pasco
    • Burbank
    • Wallula
• Washington-Oregon border:
  • Umatilla to The Dalles:
    • Umatilla, Oregon
    • Irrigon, Oregon
    • Boardman, Oregon
    • Roosevelt, Washington
    • Arlington, Oregon
    • Rufus, Oregon
    • Maryhill, Washington
    • Biggs Junction, Oregon
    • Wishram, Washington
    • Dallesport, Washington
    • The Dalles, Oregon
  • The Dalles to Portland:
    • Lyle, Washington
    • Rowena, Oregon
    • Mosier, Oregon
    • Bingen, Washington
    • White Salmon, Washington
    • Hood River, Oregon
    • Carson River Valley, Washington
    • Stevenson, Washington
    • Cascade Locks, Oregon
    • North Bonneville, Washington
    • Washougal, Washington
    • Camas, Washington
    • Vancouver, Washington
  • Portland to the mouth of the Columbia:
    • Portland, Oregon
    • St. Helens, Oregon
    • Columbia City, Oregon
    • Kalama, Washington
    • Goble, Oregon
    • Prescott, Oregon
    • Rainier, Oregon
    • Longview, Washington
    • Cathlamet, Washington
    • Astoria, Oregon
    • Warrenton, Oregon
    • Chinook, Washington
    • Ilwaco, Washington