New Member Information

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.

Discounted Admission

Your CMOSC membership card is the key to unlocking discounted admission at 200 children’s museums nationwide, as well as discounted admission at neighboring organizations.

ACM Discount

Each membership level includes reciprocal privileges with the Association of Children’s Museums (ACM). The ACM Reciprocal Network is a voluntary network of museums that reciprocate discounted admission to one another’s premium members. Present your current CMOSC membership card (physical card or in eMembership Card app) at any of the 200 reciprocal museums across the country to receive 50% off general admission for up to six (6) people, including the cardholder dependent upon the membership level the visitor has.

Click here for a complete list of ACM Reciprocal children’s museums.


  • Current Member card (or eMembership Card in app) is required
  • ID may be required
  • Contact museum to verify ACM participation before visiting

Schulz Museum & Snoopy’s Home Ice Arena Discount

Experience the joy of Peanuts! Members of CMOSC, receive $1.00 off on admission for up to four (4) people at the neighboring Charles M. Schulz Museum and at Snoopy’s Home Ice Arena! (CMOSC member card or eMembership card required.)


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