Santa Clara County has adopted strong sanctuary policies since 2011, refusing to honor ICE civil detainers without a judicial warrant. Board resolutions in 2011, 2017, and 2023 reaffirmed the policy. California SB-54 reinforces the limits statewide.
Santa Clara County's Board of Supervisors adopted a civil immigration detainer policy in October 2011, becoming one of the nation's first jurisdictions to refuse all ICE detainer requests absent a judicial warrant. Following the 2017 federal enforcement shift, the Board reaffirmed the policy and prohibited county personnel and resources from cooperating with civil immigration enforcement. A 2023 update strengthened firewalls between the Sheriff's Office, Department of Correction, and federal immigration agents. California SB-54 (the Values Act, 2017) imposes parallel limits statewide. Together they apply across all unincorporated areas, the Main Jail and Elmwood Correctional facilities, and county health and social-services offices.
County employees who breach the detainer policy face administrative discipline up to termination. No civil penalties apply to residents — the policy binds county agencies, not private parties. Wrongful detention supports Bane Act claims under Civil Code §52.1.
See how Sunnyvale's sanctuary policy preemption rules stack up against other locations.
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