The Children’s Museum offers unique and generous membership benefits designed for flexibility. All memberships include unlimited visits for one year.

Family Membership - $170

Click here to learn more >

Grandparent Membership - $170

Click here to learn more >

Compare Membership Levels


Family Access Memberships

CMOSC strives to make the Museum accessible to all families. Our Family Access program provides discounted memberships, starting at $20, to income-eligible families. A Family Access membership is valid for 1 year and provides your family with the following benefits…

Click here to learn more >

Download your eMembership Card on your smartphone


Reciprocal Privileges

The Children’s Museum of Sonoma County has reciprocal privileges and partnerships with other children’s museums and local organizations.


Membership FAQs


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.