Children’s Museum Membership

Like Museums across the globe, we temporarily closed our doors out of concern for the health and well-being of our community. The safety of our members, visitors, and staff is our top priority.

CMOSC is committed to extending all active memberships to cover the full length of this closure. For memberships purchased before April 13, 2020, we will apply an additional two months to show appreciation for your patience during this challenging time. Member support means so much to us, and we want to ensure there is every chance to visit and take advantage of all the membership benefits. Expiration dates will be adjusted once we know when the Museum is able to reopen. Meanwhile, we are optimistic that you will be able to engage with the Museum in numerous ways.

Until we can welcome you back, we will bring the Museum to you with engaging online activities. Please follow us on Facebook and Instagram and sign up for our weekly e-newsletters to learn about new videos, updates, and PLAYology ideas for you and your children to explore.

Please note: Due to COVID-19, the museum is currently closed to the public.

Become a member and inspire curiosity and creativity every day of the year! Embrace the power of learning through play with joyful and transformative experiences, programs, and exhibitions daily. With rates starting at $170, a membership for a family of 4 more than pays for itself within 4 visits!

All CMOSC Memberships include the following benefits:

  • One year of unlimited admission during regular open days*
  • Discounts on camps & workshops, birthday parties, Snow Days admission, and CMOSC Gift Corner purchases
  • Weekly members-only morning & special programming monthly
  • Discounted admission for up to 6 people at 200 participating museums in the Association of Children’s Museums (ACM) network
  • Discounted admission for up to 4 people at the neighboring Schulz Museum & Snoopy’s Home Ice Arena: $1 off each admission

*CMOSC memberships do NOT include admission to the Snow Days Family Fundraiser or to admission to birthday parties.

Family Membership – $170

  • Unlimited admission for the parent, their partner/spouse, and their legal dependent children under 18.
  • Free guests:
    • All related adults (grandparents, aunts/uncles, other relatives age 18+)
    • One unrelated adult (i.e., caregiver age 18+)
  • 4 free single-use guest passes

Who is covered with a Family Membership?

Collaborator Membership – $350

All Family Membership benefits, plus:

  • 1 extra child guest per visit
  • Partially tax deductible
  • 10 free single-use guest passes
  • Recognition in Museum
  • Invitations to VIP events
  • Discount on event rentals

Innovator Membership – $650

All Family Level benefits, plus:

  • 1 extra child guest per visit
  • Partially tax deductible
  • 20 free single-use guest passes
  • Recognition in Museum
  • Invitations to VIP events
  • Discount on event rentals

Grandparent Membership – $170

  • Unlimited admission for the grandparent and their partner/spouse, living in the same home
  • Free guests: up to 4 grandchildren under age 18 per member present
  • 4 free single-use guest passes

Who is covered with a Grandparent Membership?

All CMOSC memberships are non-refundable, non-transferable and may not be re-sold. Please read the membership terms and guidelines prior to purchasing.

Click here for Family Membership FAQs

Click here to read Grandparent Membership FAQs

CMOSC strives to make the Museum accessible to all families.

Our Family Access program provides discounted memberships, starting at $20, to income-eligible families.

New Member? Click here for detailed information on membership benefits.

Add your CMOSC eMembership Card to your smartphone for faster check-in!

1.     In the App Store or Google Play, search for “eMembership Card”
2.     Once downloaded, open app and choose Children’s Museum of Sonoma County
3.     Select Find My Membership Card
4.     Enter your phone number and last name
5.     Select Download My Cards
6.     For faster check-in, scan card at the Front Desk and tell the attendant who is with you!

Need help?  Call the Front Desk at 707-546-4069 during regular business hours.

The Children’s Museum of Sonoma County is an independent, nonprofit 501(c)(3) organization that relies on membership and admission fees as well as philanthropic support to cover operating costs, which include exhibit maintenance, facility upgrades, program development and much more. Our terms and conditions are intended to prevent misuse and abuse of memberships, which result in significant loss of revenue for the Museum. We appreciate your understanding and support.

Children’s Museum of Sonoma County’s tax EIN is 20-3496878.  Memberships are tax deductible to the fullest extent of the law. Consult your tax professional or financial adviser for more information.  


Jun 3

Wacky Wednesday

2:30pm – 3:30pm
Jun 5

Toddler Playdate

10:00am – 11:00am
Jun 6

Virtual Art Adventures

10:00am – 11:00am