Ways to Give

Become a member

Your donation to the worldwide dark sky movement supports education, outreach, advocacy, and so much more. We rely on our members, with 73% of our annual budget coming from individual contributions.

Benefits include:

Student membership
Starts at $15/month — use the “Enter amount” field on any membership form.

Ways to join / donate

Sustaining membership


Your sustaining membership enables IDA to put your recurring gifts toward our fight to protect and restore the night.

Become a Nighthawk

Annual membership


Pay your annual dues with option to make recurring for upcoming years.

Renew / join now

One-time donation

Make a non-recurring gift.

Make a one-time donation

Planned Giving

Join the Dark Sky Defender Society to ensure that future generations will know the natural night sky.

Learn more

Stock Options

For information, please contact [email protected], tel 1-520-347-6360.

Constellation Circle

Constellation Circle

For individuals or organizations who commit to making an annual gift to IDA of $1,000 or more. Contact [email protected] for more information.

How your money is spent

To review our financials and annual reports, see the Funding page.


DarkSky does not share our members’ personal information outside of the organization for any reason without your explicit permission. If there is a DarkSky chapter in your area, a qualified chapter leader may contact you about local activities and volunteer opportunities. For more info, read our Privacy Policy.

Tax info

Your membership contribution is tax-deductible in the United States, as allowed by law. DarkSky is a tax exempt 501(c)(3) organization, registered in the state of Arizona. Our EIN is 74-2493011.

Contact us

If you have any questions about membership or donations that aren’t covered here, please read the membership FAQ or contact us.

New payment processor

We’re making many upgrades to our online membership capabilities, and the first one is already launched. We’ve changed our donation processor — so the donation and membership forms linked from this page may look a little different.

We hope you find it easy to use!