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King County, WA Immigration Policy: Sanctuary Policy Preemption (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified August 2026

Key Facts

Detainer compliance
Not honored without judicial warrant
Facility access
No ICE access without warrant
Applies to
Unincorporated King County only
Complaint venue
Office of Equity and Racial and Social Justice

Summary

King County agencies and the sheriff's office won't spend resources on civil immigration enforcement or hold people on ICE detainers without a judicial criminal warrant.

City-specific rules exist: Kirkland has its own sanctuary policy preemption rules that differ from King County's county-level regulations. If you live in Kirkland, check the city-specific page instead.

King County and its agents and departments and county employees shall not:

1. Enter into any contract, agreement, or arrangement, whether written or oral, that would grant federal civil immigration enforcement authority or powers to King County or its agents or law enforcement officers, including but not limited to agreements created under 8 U.S.C. Sec. 1357(g) or Intergovernmental Service Agreements;

2. Honor immigration detainer requests or administrative warrants issued by ICE, CBP, USCIS, or any other federal agency, or hold any person upon the basis of an ICE, CBP, USCIS, or any other federal agency detainer request or administrative warrant unless such request or warrant is accompanied by a criminal warrant issued by a United States District Court judge or magistrate. The sheriff's office or the department of adult and juvenile detention personnel shall not carry out a civil arrest, detain a person after the release date set by a court, or refuse to accept a bond based on an administrative warrant separately or in combination with an ICE, CBP, USCIS, or any other federal agency detainer request;

Full Breakdown

Under K.C.C. 2.15.020, King County agents, departments and employees may not honor ICE, CBP or USCIS detainer requests or administrative warrants, or hold anyone past their release date on that basis, unless the request is paired with a criminal warrant signed by a federal judge or magistrate. The county also won't give ICE access to nonpublic facilities, databases or people in custody without a judicial warrant, and won't hand over personal information like release dates for civil immigration purposes. The rule applies only to unincorporated King County government; Seattle, Bellevue, Kent, Renton and other incorporated cities operate under their own separate ordinances.

Violations & Fines

No stated penalty for county staff; a person harmed by a violation of the chapter may file a damages complaint with the Office of Equity and Racial and Social Justice under K.C.C. 12.22.040.

Frequently Asked Questions

Does this cover Seattle or Bellevue?
No. This is unincorporated King County law only; Seattle, Bellevue, Kent, Renton and other cities have their own separate municipal codes and policies.
Will the sheriff hold someone on an ICE detainer alone?
No. K.C.C. 2.15.020 bars honoring an ICE, CBP or USCIS detainer or administrative warrant unless it comes with a judge-signed criminal warrant.

Sources & Official References

Other rules in King County

All King County rules

Compare King County to another location·View the Washington immigration policy overview

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Sanctuary Policy Preemption in Cities Across King County