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Department of Child Support Services, Contra Costa County, CA

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In Contra Costa County, the Department of Child Support Services is located at:

50 Douglas Drive, Suite 100 , Martinez, CA.

Watch a video produced by DCSS called, "Our Children, Our Future". Opens new window


The Department of Child Support Services is where you can get help to:

  • Open a new child support case;
  • Establish paternity (fatherhood);
  • Locate parents;
  • Request medical support orders from the court;
  • Enforce child support orders; and
  • Modify child support orders.


Services NOT offered by the DCSS:

  • Divorce;
  • Custody;
  • Visitation;
  • Restraining Orders;
  • Establishing spousal or partner support orders;
  • Enforcing spousal or partner support orders that are not included with child support.


The Department of Child Support Services can be contacted as follows:

Office hours: 7:30am – 4:00pm
Telephone number: (866) 244-5382 (toll–free)
Telephone message: (925) 957-7300 (voice)
Fax: (925) 335–3636

Mailing address:  50 Douglas Drive, Suite 100, Martinez, CA 94553.

E-Mail:  childsupport@dcss.co.contra-costa.ca.us


To go to the Contra Costa County Department of Child Support Services' website,
click here. Opens new window


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