Immigration Policy in Cook County, IL (2026)
1 county-level rule, plus city-specific rules for 4 cities in Cook County, Illinois.
Verified from official government sources
Note: These county rules apply to unincorporated areas of Cook County. If you live within an incorporated city, that city's own rules apply: see the city list below.
Sanctuary Policy Preemption
Cook County's Sheriff must decline ICE detainer requests countywide unless the federal government agrees in writing to reimburse all compliance costs.
Cook County Sheriff Declines ICE Detainers
Significant RestrictionsCook County Code § 46-37
The Sheriff of Cook County shall decline ICE detainer requests unless there is a written agreement with the federal government by which all costs incurred by Cook County in complying with the ICE detainer shall be reimbursed. ... [C]ounty personnel shall not expend their time responding to ICE inquiries or communicating with ICE regarding individuals' incarceration status or release dates while...
Immigration Policy by City in Cook County
4 cities in Cook County have their own immigration policy rules. Each link goes to that city's dedicated page with code citations.
All Cook County ordinances
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