King County Superior Court is responsible for:

  • Civil matters involving more than $300;
  • Unlawful detainer and injunctions;
  • Felony criminal cases;
  • Family law (including dissolutions, child support, adoptions, parentage, and domestic-violence protection matters);
  • Probate;
  • Juvenile offender cases (including abused and neglected children, children in need of services, at-risk youth, and truancies);
  • Mental illness; and
  • Involuntary commitment matters. 

For more information on the King County Superior Court, contact the Clerk of the Court at (206) 296-9300.