Welcome to the CMOSC Family!

Welcome to your new membership at the Children’s Museum of Sonoma County!


We’re thrilled to have you as members! Check out your membership benefits below!

Family Membership

Who are the named members?

The parent, their partner/spouse and their legal dependent children under 18

Who are my free guests?

All related adults and one unrelated adult (i.e. caregiver age 18+)

Click here to learn more >

Grandparent Membership

Who are the named members?

The grandparent and their partner/spouse

Who are my free guests?

Up to four grandchildren per named member present

Click here to learn more >

Member Benefits:

New! 10% off on items from the CMOSC Gift Corner

New! Priority access to camp and workshop registration

New! 15% off the non-member price for camps, workshops and birthdays

New! Members-Only Programming the 2nd Sunday of each month, 9-11am

Members-Only Morning: every Sunday, 9-11am

Use Your CMOSC Membership to Get Discounts! Your CMOSC membership card is the key to unlocking discounted admission at 200 children’s museums nationwide, as well as discounted admission when you visit our neighbors at the Schulz Museum and Snoopy’s Home Ice. CLICK HERE TO LEARN MORE >

Download your CMOSC eMembership Card on your smartphone

(Physical cards are only available by request.)

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.

Have Questions About Your Membership?


FIND THE ANSWER HERE >


Interested in being a part of the CMOSC Mission?

Here are some ways you can get involved:


Stay up-to-date on what’s happening at CMOSC:


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.  

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The Museum will be closed March 31 for Easter Sunday.