Sonoma County Child Support Services Main Office

Santa Rosa, California

The Sonoma County Child Support Services Main Office is at 3725 Westwind Boulevard, Suite 200, Santa Rosa, CA 95403. Call the Department of Child Support Services at (866) 901-3212, the statewide line. It serves Sonoma County.

How do I contact this office?

3725 Westwind Boulevard, Suite 200
Santa Rosa, CA 95403
Phone
(866) 901-3212 (statewide line)
TTY
(866) 399-4096
Text
(707) 244-1066
Hours
Monday to Friday, 8:00 a.m. to 5:00 p.m.
Email
dcss@sonomacounty.gov
Fax
(707) 565-4018
Official page
Office page

Is this my office?

This office serves Sonoma County.

Not your area? See every California child support office.

Can I handle this without going in?

Often, yes. Many requests don't need a visit:

Other child support offices near Santa Rosa

More help with California child support

Office details come from the official California office listing, checked October 24, 2026. Sunny Child Support is not affiliated with the Department of Child Support Services. Spot a mistake? Tell us.