|Monday||8:00 a.m. - 5:00 p.m.|
|Tuesday||8:00 a.m. - 5:00 p.m.|
|Wednesday||8:00 a.m. - 5:00 p.m.|
|Thursday||8:00 a.m. - 5:00 p.m.|
|Friday||8:00 a.m. - 5:00 p.m.|
The Sonoma County Library Headquarters are located in Rohnert Park and provide the center of operations and administration for the countywide Sonoma County Library System.
The Office of Director of the Library is located in the Rohnert Park Headquarters.
The Headquarters also provide offices and working space for the Budget and Finance Department, Human Resources, Collection Services and Facilities.