Cook_County_GISThe purpose of this dataset is to indicate the boundary of each Commissioner district in Cook County, Illinois. These boundaries are based off of Census 2020 geographies, were adopted September 23, 2021 , and will go into effect on December 5, 2022.ArcGIS DynamicMapLayerhttps://hub.arcgis.com/datasets/8eb3dca457cb46d7a2a0c96588c4016c_9engCook CentralPublicCook County Commissioner District -Current [Illinois--Cook County]Web servicesIllinois--Cook CountyIllinoisLast Modified: 2022-12-05