Window Painting at CMOSC

Children’s Museum logo 

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CMOSC logo with website 


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Fast Facts


CEO & Founder, Collette Michaud
Full Board


The Children’s Museum of Sonoma County’s mission is to inspire curiosity and creativity through joyful transformative experiences.


In 2005, a group of Sonoma County mothers began planning a children’s museum to address the lack of a local gathering place where parents, grandparents, and teachers could support a child’s natural craving for curiosity and exploration. This team of educated volunteers established Children’s Museum of Sonoma County (CMOSC) as a Federal 501(c)(3) corporation in December 2005 and launched the Museum-on-the-Go (MOG) mobile science and art outreach program. Basic and engaging concepts in these two focused areas would become the hallmark of MOG exhibits.

In 2014, CMOSC opened Mary’s Garden, the first phase of the capital campaign, to the public.  And a year later, followed with the opening of the Science and Imagination Gallery and Totopia interior galleries. Click here for a complete history.

Museum Visitors & Site

The Children’s Museum of Sonoma County is a vibrant and welcoming place for all children. It provides opportunities to experience the transformative power of learning through joyful play. The Museum is located on a 50,000sf2 campus with both indoor and outdoor exhibits, which are focused on science, art, and nature for children aged ten years and younger. Programs and exhibits experienced at the Museum have long lasting economic, health and social outcomes for children and society.

The Children’s Museum of Sonoma County welcomes low-income visitors through core access programs, described below. These programs demonstrate our vision that all children have the right to equitable learning opportunities to help them achieve their full potential as engaged learners and successful members of society. With funding from committed investors, we offer the following programs to ensure at-risk children have access: 

  • The Access Membership program provides discounted admission and memberships to families who need it most. The Access program is designed to serve families who are not able to afford the Museum experience by offering annual memberships at a percentage of their regular cost.
  • Museums for All program. Through this program, anyone with an Electronic Benefit Transfer card (CalFresh Food Stamps) can enter the Museum for just $3/person (regular admission price is $16/person). The Children’s Museum provides discounted admission to between 25% and 60% of visitors on any given day. 
  • Open Door Pay What You Can program. Visitors pay on a sliding scale basis, including no charge (letting the caregivers decide what they can afford). 


Located at 1835 W. Steele Lane in Santa Rosa, the Children’s Museum is within easy access to HWY 101 and Coddingtown Mall. The Santa Rosa CityBus (stop 11) and the SMART Train Guerneville Rd stop are both within easy walking distance to the Children’s Museum.

Additional Recognition

  • Voted “Best Children’s Museum” by the Northbay Bohemian 11 years in a row, 2010 – 2022
  • Voted “Best Place to Take Kids in Sonoma County” by the Press Democrat, 2018
  • Voted “Best Place in the World for Kids to Play That is not a Playground” by Landscape Architects Network, 2016
  • Voted “Top 3 Places to See in Santa Rosa” by Three Best Rated, 2019
  • Voted “Best Children’s Education Center” and “Best Children’s Museum” by Bohemian, 2019
  • Top Things to Do in Sonoma County with Kids, Sunset Magazine, 2018

Recent Press Releases

See all press releases, click here.


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