Human Services Department

Human Services is the right place to start when you need support. 

You'll find helpful social services and programs for residents of all ages:

See the Services Overview page for more programs and services.

Check our Calendar for upcoming public events and programs.

520 Mendocino Ave. Current Hours 2-4 p.m.
Office Closing September 23

Hours are 2-4 p.m., Monday - Friday, at 520 Mendocino Avenue, Santa Rosa.

The office will close permanently for in-person Medi-Cal, CalFresh and General Assistance services starting Monday, September 23, 2019.

Find in-person services from 8 a.m.-5 p.m. at the main office at 2550 Paulin Drive, Santa Rosa, and the Human Services Department’s South County Center, 5350 Old Redwood Highway North, Suite 100, Petaluma. 

    Find details about the 520 closure and where to find services here.

    Contact Information

    Human Services Department
    County of Sonoma
    Business Hours
    Monday – Friday
    8:00 AM – 5:00 PM
    Contact us by Phone
    3600 Westwind Boulevard
    Santa Rosa, CA 95403
    38.508155, -122.795028
    Mailing Address
    PO Box 1539
    Santa Rosa, CA 95402

    Visit HSD in Petaluma

    Human Services South County Center

    5350 Old Redwood Highway

    HSD Logo

    Call for an appointment (707) 565-5511


    Call or search online for countywide services

    2-1-1 Resource Line logo

    Dial 2-1-1 or (707) 565-2108

    Report Abuse

    Child abuse or neglect, (707) 565-4304 or (800) 870-7064

    Adult abuse, neglect or exploitation, (800) 667-0404

    Welfare fraud, (707) 565-8530 or (800) 344-8477

    Civil rights violations, (707) 565-5855

    SB 272

    Senate Bill 272 requires local agencies publish a list of systems that serve as original sources of data within an agency.

    Read more