International Dark Sky Places

Stars over Big Bend National Park by Tyler Nordgren

   Interest in our International Dark Sky Places is on the
   rise.  Learn all about them here.>>

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 There are three easy ways to join:  

Online

 Phone

By Mail

 Join Online  Call 520-293-3198

 Print and Mail Membership Form

Mailing Address
IDA International Headquarters
3223 N. First Avenue
Tucson, Arizona 85719
USA

 

Welcome to IDA!

Thank you for your interest! Join IDA and be welcomed into a family of dedicated individuals, organizations, and companies committed to protecting and preserving the nighttime environment

 

The International Dark-Sky Association, with your support, helps to:  

  • reduce light pollution
  • conserve energy
  • enhance human health & the environment
  • support sound economic development 
  • preserve and protect the night environment while protecting dark skies for today and tomorrow


From its grassroots efforts to research initiatives to seminars and publications, IDA is maximizing its support to meet our common goals. 

Learn more about additional ways to help protect and preserve the nighttime environment and promote effective outdoor lighting.

If you have problems joining or renewing online using our new system, please contact us at + 1 (520) 293-3198 or This email address is being protected from spambots. You need JavaScript enabled to view it. and we will be happy to process your request over the phone or assist you with the new online membership form.

This email address is being protected from spambots. You need JavaScript enabled to view it. are available for manufacturers, design and construction firms, suppliers, and other businesses.  This email address is being protected from spambots. You need JavaScript enabled to view it. for more information or call 520-293-3198.

 

©The GlareBuster/TheGlareBuster.com
 

 Benefits to you

 

  • One year subscription to IDA's award-winning publication, Nightscape
  • Access to valuable resources in the Members Only section of the Web site
  • Significant discounts on IDA material, merchandise, conferences, events, and more
  • Display decal for your home or automobile
  • Opportunities to participate in local IDA Chapter activities
  • Delivery of IDA e-News directly to your e-mail inbox

Any questions?
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Geoffrey Notkin from the Science Channel's "Meteorite Men" speaks on the importance of dark skies.