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 Santa Clara's sanctuary policy preemption rules stack up against other locations.
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