Cook_County_GISTaxing Districts are units of local government that provide services and are authorized to levy taxes on property within their geographic boundaries to pay for those services. Tax District Boundaries are maintained by the Cook County Clerk's Office.ArcGIS DynamicMapLayerhttps://hub.arcgis.com/datasets/b9cb8263323f4cfaabedc05618569110_2025engCook CentralPublicLibrary Tax District - Historical - 2025 [Illinois--Cook County]Web servicesIllinois--Cook CountyIllinois2025