Amateur Astronomy United States

• Alabama
• Alaska
• Arizona
• Arkansas
• California
• Colorado
• Connecticut
• Delaware
• Florida
• Georgia
• Hawaii
• Idaho
• Illinois
• Indiana
• Iowa
• Kansas
• Kentucky

• Louisiana
• Maine
• Maryland
• Massachusetts
• Michigan
• Minnesota
• Mississippi
• Missouri
• Montana
• Nebraska
• Nevada
• New Hampshire
• New Jersey
• New Mexico
• New York
• North Carolina
• North Dakota

• Ohio
• Oklahoma
• Oregon
• Pennsylvania
• Rhode Island
• South Carolina
• South Dakota
• Tennessee
• Texas
• Utah
• Vermont
• Virginia
• Washington
• Washington DC
• West Virginia
• Wisconsin
• Wyoming

• Regional: United States: Science and Environment 

• The Astronomical League  - Composed of over two hundred and forty local amateur astronomical societies from all across the United States.
• NexStar 50 Club  - Shows data table of observed deep sky and planetary objects including moon features. Also includes list of members and reference works.
• Sky Watch  - Comprehensive list of all things astronomy. Find clubs, links, galleries, resources, books, and articles.
• Urban Observing Club  - Contains details about the policies, membership privileges, merchandise and forthcoming activities of the group.