Amateur
- 481
- The Fox Valley Astronomical Society
- Club brochure, newsletter, meetings, and education resources located in Wasco.
- 482
- The Naperville Astronomical Association
- Star gazing, club news and calendar, message board, library, and classifieds.
- 483
- Flint River Astronomy Club
- Calendar, directions, tools, newsletters, observing lists, awards, and library located at Griffin.
- 484
- The Middle Georgia Astronomical Society
- General information, discussion room, and directions located at Macon.
- 485
- Central Florida Astronomical Society
- Events, general and observing information, and news located in Orlando.
- 486
- Everglades Astronomical Society
- Gallery, this week's sky, planet and galaxy information, tutorial, and newsletter located in Naples.
- 487
- Museum Astronomical Resource Society
- Provides news and astronomical information to the membership and public located in Tampa.
- 489
- South Florida Amateur Astronomers Association
- Astronomers etiquette, gallery calendar, store, area skies, and links located in Sunrise.
- 490
- Southern Cross Astronomical Society
- In Miami, provides newsletter, gallery, resources, and star party.
- 491
- Southwest Florida Astronomical Society
- Maps, meetings, past events, resources, star party etiquette, and telescope loan program located in Cape Coral.
- 492
- The Brevard Astronomical Society
- Star parties, meetings, presentations, calendar, album, newsletter, and glossary located at Cocoa.
- 493
- The Northeast Florida Astronomical Society
- Located in Jacksonville and serves the Beaches, Orange Park, and Nassau County and provides observing information, forums, calendar, gallery, files, and resources.
- 496
- Astronomical Society of the Desert
- Calendar of events, photos, history lecture meeting schedule, movies, and special events located in Palm Desert.
- 497
- Central Valley Astronomers
- Calendar, newsletter, forum, meetings, star party etiquette, photographs, and club photo located in Fresno.
- 498
- Fremont Peak Observatory Association
- The only California State Parks cooperative association devoted to interpreting astronomy to the public, and includes information and weather reports for visitors. Located in San Juan Bautista.