The Trigger

In December 2025, DHS/ICE posted a pre-solicitation notice on SAM.gov signaling interest in building a 1,635-bed detention facility in the Seattle/King County area, estimated at ~$400 million. This followed President Trump’s July 2025 legislation providing $170 billion for immigration enforcement, with $45 billion specifically for detention center expansion.

The Response (Feb-Mar 2026)

A coordinated regional effort by elected officials across 7 jurisdictions passed moratoriums blocking new or expanded immigration detention facilities:

Specific Measures

Seattle: Interim regulations prohibiting “all new and expanded jails and detention centers” for 365 days, allowing time for permanent legislation. Passed unanimously by City Council.

King County: County property use blocked for immigration enforcement actions, with directives for enhanced executive response to ICE/CBP activities. Additional moratorium extending protections to unincorporated King County areas.

Port of Seattle: Order preventing conversion of non-public Port properties for new or expanded detention or immigration enforcement uses. Critical given SeaTac Airport’s role.

King County Executive: Girmay Zahilay announced measures limiting ICE enforcement in county-owned spaces, prohibiting ICE from staging in non-public county buildings/garages/lots — particularly significant ahead of 2026 World Cup at Seattle venues.

Why It Matters

This is one of the most coordinated regional preemptive defenses against ICE facility expansion documented in this project. Seven jurisdictions acting in concert, triggered by a single DHS pre-solicitation, created a de facto regional barrier to new detention infrastructure. The moratoriums use land-use regulation as the legal mechanism — a strategy that proved effective in Tacoma’s 2018 zoning restrictions that prevented GEO Group from expanding the NWIPC.

The World Cup dimension adds urgency: DHS Secretary signaled a “hard look” at pulling Customs operations from sanctuary city airports, which would effectively shut down SeaTac — Washington’s primary international hub.

Sources

• Cities in Washington ban new ICE detention centers amid Trump push to expand (Spokesman-Review, Mar 31, 2026)
• Councilmember Rinck and regional leaders take action (Seattle City Council Blog, Feb 13, 2026)
• Seattle City Council unanimously approves emergency moratorium (Seattle City Council Blog, Mar 10, 2026)
• Seattle and nearby cities move to block new ICE detention centers (Axios Seattle, Mar 16, 2026)
• King County Executive aims to limit ICE at World Cup (FOX 13 Seattle)
• ICE exploring expanded detention capacity in Pacific Northwest (KING5)

Updates (2026-04-29)

Regional Enforcement Context

• April 21, 2026: Axios Seattle overview of how Seattle and King County are pushing back on ICE — covers moratoriums, ban on ICE staging in non-public county buildings, and new Seattle ordinance banning city employees from sharing private data for civil immigration enforcement absent a judicial order.

WA State Action: GEO Group / Tacoma NWIPC Inspection Fight

• April 28, 2026: Gov. Bob Ferguson and AG Nick Brown filed a motion for preliminary injunction in U.S. District Court (Western District of Washington) against GEO Group to compel health inspections at the Northwest ICE Processing Center in Tacoma. State health inspectors have been denied entry 10 times, including twice after an appeals court affirmed state inspection authority. Most recent denial: April 20, 2026. Inspectors are seeking to investigate 3,500+ detainee complaints covering medical neglect, contaminated food, unsanitary conditions, and staff assault. Two detainee deaths and six suicide attempts documented since 2024. Hearing set: May 26, 2026, U.S. District Court Western District of Washington.
• Governor Ferguson, AG Brown seek court order to permit health inspections at NWIPC (WA Gov Office, Apr 28, 2026) — State files for injunction against GEO Group; inspection hearing set May 26
• WA officials ask court to let state health inspectors into Tacoma ICE facility (KNKX, Apr 28, 2026) — Details on facility conditions and inspection refusals
• Ferguson, Brown Take GEO Group To Court In Showdown Over Tacoma ICE Lockup (Hoodline, Apr 28, 2026) — Additional detail on the injunction motion

Tukwila Ban Extension

• Late April 2026: Community members urged Tukwila City Council to extend its 6-month ban before expiration. Key concern: ICE reportedly eyeing Riverfront Technical Park in Tukwila; current ban does not prohibit ICE from leasing office space, only new detention construction.