Pacific Northwest Clubs

Washington
Battle Point Astronomical Association - Bainbridge Island
Boeing Employees' Astronomical Society - Seattle
Celestial North - Greenbank
Central Washington University Astronomy Club - Ellensburg
Eastside Astronomical Society- Bellevue
Everett Astronomical Society - Everett
Galileo Astronomical Unclub - Auburn
Island County Astronomical Society - Oak Harbor
Olympic Astronomy Society - Bremerton
Palouse Astronomical Society - Pullman, WA; Moscow, ID
Southwestern Washington Stargazers - Battle Ground
Spokane Astronomical Society - Spokane, Washington
Squak Mountain Telescope Gang - Issaquah
Tacoma Astronomical Society - Tacoma
Tri-City Astronomy Club - Richland, Washington
Whatcom County Celestial Observers - Ferndale
Yakima Astronomical Society - Yakima, Washington
Idaho
Boise Astronomical Society
Idaho Falls Astronomical Society
Magic Valley Astronomical Society
BYU-Idaho Astronomical Society
Palouse Astronomical Society
Oregon
Columbia Gorge Amateur Astronomers
Eugene Astronomical Society
Grant’s Pass Astronomy Society
Heart of the Valley Astronomers
Northwest Astronomy Group
Rose City Astronomers
Sisters Astronomy Club
Southern Oregon Skywatchers
Umpaqua Amateur Astronomers
Night Sky 45 Astronomy Club
British Columbia
Fraser Valley Astronomers Society
Okanagan Astronomical Society - Penticton, BC
Victoria Centre, RASC - Victoria, B.C.
Alaska
Fairbanks Astronomical Unit - Fairbanks, Alaska
Random Samples (National)
Ames Area Amateur Astronomers - Ames, Iowa
Atlanta Astronomy Club - Atlanta, Georgia
Ryerson Astronomical Society - U. of Chicago
Astronomical Organizations
Astronomical League
Royal Astronomical Society of Canada
Lists, U.S. and Other Clubs
Sky & Telescope's List of Clubs