Location: Southeast

The City of Santa Rosa (Bennett Valley, Rincon Valley and the community of Oakmont), City of Sonoma and the adjacent unincorporated communities of Kenwood, Agua Caliente, Glen Ellen, El Verano, Boyes Hot Springs, Schellville and Vineburg.

Location: Southwest

The City of Petaluma, City of Cotati, a portion of Rohnert Park and the unincorporated communities of Penngrove, Two Rock and Bloomfield.

Location: Central

Most of central Santa Rosa and the City of Rohnert Park (east of Highway 101).

Location: Northeast

Northwest Santa Rosa (Fulton and Larkfield-Wikiup area), Town of Windsor, City of Healdsburg, community of Geyserville and the City of Cloverdale.

Northwest Sonoma County: Sonoma County coast, lower Russian River area, Sebastopol and the west and southwest Santa Rosa areas (extending into Highway 101).

The Department of Child Support Services (DCSS) establishes and enforces court orders for child support, paternity and medical coverage; Assists with locating the parents; Collects and distributes support payments; Maintains accounting records of all payments made and past due; Modifies court orders when appropriate; and provides legal and case management services to ensure child and medical support orders are maintained.

The County Clerk-Recorder Division of the Sonoma County Clerk-Recorder-Assessor Department has a variety of duties, including issuing marriage licenses, filing fictitious business name statements, processing notary bonds, handling environmental documents, performing civil marriage ceremonies, recording documents including deeds, maps and liens as well as maintaining cross-reference indexes for these documents. The recorded documents are open for public inspection.

Sonoma County individuals and families can apply for help to pay for food, housing, medical and dental care, and other vital supportive services.

The Employment and Training Division provides financial assistance, an array of social services and enhanced employment services to eligible Sonoma County residents. The Division also provides resources to local employers to access a skilled workforce to grow their businesses.

Family, Youth and Children's Services helps ensure the welfare, safety and well-being of Sonoma County children and teens through foster care, child protection services (CPS) and social services support for families. Staff investigate reports of child abuse, neglect or abandonment. Children may stay temporarily at the Valley of the Moon Children's Home. Staff also train community professionals who are mandated reporters about child abuse prevention and reporting. Santa Rosa, California.

The Fire Prevention and Hazardous Materials Division of Permit Sonoma is primarily responsible for programs, procedures, and projects for preventing the outbreak of fires within the unincorporated areas of the county and for minimizing the danger to persons and damage to property caused by fires that do occur. In addition to code enforcement, the Fire Prevention Division staff is responsible for hazardous materials incident response, fire investigations and emergency scene management support at emergencies. 

Providing all members of the public with effective and independent review of the Sonoma County Sheriff’s Office, making policy recommendations to improve the performance, and maintaining continual engagement with members of the public in Sonoma County.

The Office of Recovery and Resiliency was established to develop a post-fire recovery and resiliency plan in December 2017, as mandated by the Sonoma County Board of Supervisors.

Permit Sonoma is Sonoma County's consolidated land use planning and development permitting agency. Virtually any land development or construction that takes place in the unincorporated area of Sonoma County (outside the nine incorporated cities) is reviewed, permitted, and inspected by Permit Sonoma.