There are a wide variety of astronomy-interest groups and places to go near Seattle. I hope that eventually this list will be complete, but it currently is not.

Societies/Groups/Unclubs

Seattle Astronomical Society

Battle Point Astronomical Association

Boeing Employees’ Astronomical Society

Eastside Astronomical Society

Everett Astronomical Society

Galileo Astronomy Unclub

Island County Astronomical Society

Maple Valley Astronomical Society

Olympic Astronomical Society

Puget Sound Mars Society

Seattle Astronomical Society

Squak Mountain Telescope Gang

Tacoma Astronomical Society

Whatcom Association of Celestial Observers

Public Museums/Observatories/Other Locations

Pacific Science Center (Willard Smith Planetarium)

Museum of Flight

University of Washington (Theodore Jacobson Observatory & Planetarium)

Local Blogs

Seattle Astronomy Examiner

Eastside Astronomer