About Sonoma County Library

The Sonoma County Library is a countywide system, encompassing all nine cities and the unincorporated areas. A Joint Powers Agreement created in 1975, and revised in 2014, established the library as a separate public agency. Today, the library serves half a million county residents, at 12 regional libraries, two rural stations, three special collections, and a wide variety of digital resources.

A countywide library system is a good investment for the people of Sonoma County – it provides the community access to the rich resources of every library in the county, and beyond through inter-library lending programs. The cities and the county provide the buildings that house libraries in each community, and the library provides comprehensive services and outreach.

The Sonoma County Library Commission is an 11-person body responsible for governing the library. Commissioners are appointed by the cities in Sonoma County and the county Board of Supervisors.

We are known nationally for our innovation, and locally for our connection to our residents and communities. We are a community hub where learning, the arts, technology, and people come together to discover, learn, and share.