Sonoma County Child Support Services Sonoma Office
Sonoma, California · Satellite office
The Sonoma County Child Support Services Sonoma Office is at 19080 Lomita Ave, Sonoma, CA 95476. Call the office at (707) 565-4010. It serves Sonoma County.
How do I contact this office?
19080 Lomita AveSonoma, CA 95476
- Phone
- (707) 565-4010
- TTY
- (866) 399-4096
- Text
- (707) 244-1066
- Hours
- Wednesday, by appointment only
- Before you go
- By appointment only. Call (707) 565-4010.
- dcss@sonomacounty.gov
- 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:
- Check your case and payments online in Customer Connect.
- Pay online, by phone, or by mail: see every way to pay child support in California.
- Ask about your case by phone at (707) 565-4010.
Going in person? Read "Before you go" above, and call first if you can.
Other child support offices near Sonoma
- Sonoma County Child Support Services Petaluma Office Petaluma · 11 miles away
- Napa County Department of Child Support Services Napa · 13 miles away
- Marin County Department of Child Support Services Novato · 15 miles away
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.