Amateur
- 462
- Astronomical Society of Northern New England
- Events, newsletters, star party curriculum, and links located in Kennebunk.
- 463
- Southern Maine Astronomers
- Education, observing information, outreach, forum, and newsletter located at Cumberland Center.
- 465
- Ouachita Valley Astronomy League
- Events, chat room, forum, galleries, meetings, projects, and star parties located at Monroe.
- 466
- Shreveport-Bossier Astronomical Society
- Star parties, gallery, special topics, newsletter, and links.
- 468
- North Central Kansas Astronomical Society
- Events, projects, education resources, and galleries located in Manhattan.
- 470
- Michiana Astronomical Society
- Calendar, photos, observation information, and toolbox located at South Bend.
- 473
- The Evansville Indiana Astronomical Society
- Promoting the hobby of astronomy, meeting and event schedule, the night sky, and links.
- 474
- Wabash Valley Astronomical Society
- Activities, observatory information, star party, first telescope tips, outreach, programs, and gallery located in Lafayette.
- 475
- Champaign - Urbana Astronomical Society
- Events calendar, looking up, news, helpful hints, and links.
- 476
- Lake County Astronomical Society
- The sky, news, beginners corner, dictionary, article archive, astrophotography, archaeoastronomy, and downloads located at Ingleside.
- 477
- Northwest Suburban Astronomers
- Club based in the northwest suburbs of Chicago provides membership information, event calendar including star parties, tips for beginners, reading suggestions, observing information and photo gallery.
- 478
- Peoria Astronomical Society
- News, archives, learning topics, calendar, downloads, gallery, and links.