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. Hours Reduced; Closure of In-Person Services in September

The Economic Assistance office at 520 Mendocino Avenue, Santa Rosa, will close for in-person Medi-Cal, CalFresh and General Assistance client services starting Monday, September 23, 2019.

Each month until the September closure, open hours at the Mendocino office will be reduced.

Currently open 10 a.m.–4 p.m, Monday – Friday office hours will change on the following Mondays:

  • July 22 to noon–4 p.m.
  • August 26 to 2–4 p.m.
  • September 23 when in-person services will permanently close.

Economic Assistance in-person client services will continue to be offered at its 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