About the library
Library is available for Phone Service Only:
Tuesday - Phone service only, 10 am - 5 pm
Wednesday - Phone service only, 10 am - 5 pm
Thursday - Phone service only, 10 am - 5 pm
The Sonoma County Library’s local history and genealogy collection is a community resource of immense value that was first established in the Santa Rosa Central Library’s California Room. In 1994, the collection was moved to a separate building located adjacent to the Central Library and commonly referred to as the “Annex.” In 2002, the Sonoma County Library Commission, governing board of the county-wide library system, adopted a new mission statement for the local history and genealogy division and renamed it the Sonoma County History & Genealogy Library. Services, resources, and technologies continue to grow to meet the demands of those we serve.