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Father kissing baby

Paternity Unit Files parentage actions. Once the court determines who the legal parents are, the parents can obtain child support, back support and determine custody and a residential schedule/parenting plan.


Modification Unit Facilitates modifying child support to accurately reflect the financial circumstances of the parents and the needs of the child.

Writing out checks and a stack of bills.

Navigator Unit
Assists parents in meeting their child support obligations by connecting parents with employment opportunities, training programs and other community resources.

King County Courthouse lobby

Contempt Unit Assists in collecting current and past due child support.

Mission Statement

The mission of the Family Support Division of the King County Prosecuting Attorney's Office is to promote family self-sufficiency and the well-being of children.

We accomplish this by helping parents connect to community services and to the King County Superior Court to establish, modify and enforce child support obligations.

If you don't find answers to your questions on our website, please feel free to call or visit us at either of the following locations. 

King County Courthouse
516 Third Avenue, Room E400
Seattle, Washington 98104-2388

Office Hours: Monday through Friday, 8:30 a.m. to 12:00 p.m. and 1:00 p.m. to 4:30 p.m. 

Se habla español.

724 West Smith Street, Suite 101
Kent, Washington 98032-4470

Office Hours: Monday through Friday, 8:30 a.m. to 4:30 p.m.

Se habla español. 

Large colorful mural on the wall of the Mission Daycare

We are closed all major holidays:

  • January 1, 2021 (New Year's Day)
  • January 18, 2021 (Martin Luther King Jr. Day)
  • February 15, 2021 (President's Day)
  • May 31, 2021 (Memorial Day)
  • July 5, 2021 (Independence Day)
  • September 6, 2021 (Labor Day)
  • November 11, 2021 (Veteran's Day)
  • November 25, 2021 (Thanksgiving Day)
  • November 26, 2021 (Native American Heritage Day)
  • December 24, 2021 (Christmas Day)
  • December 31, 2021 (New Year's Day)

Before Contacting Our Office:

PLEASE NOTE:  All requests for support enforcement or paternity establishment services must be made through the Department of Social and Health Services, Division of Child Support (DCS) (external link).  Use the link or contact the Division of Child Support directly at 1-800-922-4306 or 1-800-442-5437.


State’s Appearance in Private Family Law Cases

The Family Support Division may elect to appear in private cases solely for the purpose of protecting the State’s financial interest. If you or your child are/or have been a recipient of public assistance benefits from the State of Washington and you are a party in a family law case (such as paternity, divorce, modification, or non-parental custody) the Family Support Division must be notified of the action.


Child Support Basics

DCS = Division of Child Support (Part of DSHS)

PAO = Prosecuting Attorney’s Office

ABD = Aged/Blind/Disabled (DSHS disability benefits)

APA = Administrative Procedure Act (RCW 34.05)

CB = Conference Board

FC = Foster case

LFLR10 = King County Local Family Law Rule 10

NA = Non-Assistance (Non-TANF)

NCP = Non-Custodial Parent

TANF = Temporary Assistance to Needy Families

9-741 = Request for Review of Child Support Order


Photos courtesy of Creative Commons
"Wisdom kissing Ozare," by Cherie Joyful
"Libby's new glasses and braces," by Loren Kerns
"November 9th," by Kate Hiscock
"Men at Work," by Buytenwegh Zoetermeer
"Gracias Jamestown, Mission Daycare, SAFE," by Jay Galvin

King County Prosecutor
Dan Satterberg
Read Dan's Biography


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