data.cityofchicago.orgChicago's central business district boundary. The data can be viewed on the Chicago Data Portal with a web browser. However, to view or use the files outside of a web browser, you will need to use compression software and special GIS software, such as ESRI ArcGIS (shapefile) or Google Earth (KML or KMZ).https://data.cityofchicago.org/api/views/fe34-kcciengCity of Chicago Data PortalPublicFacilities & Geographic BoundariesCentral_Business_District [Illinois--Chicago]Web servicesIllinois--ChicagoIllinoisLast Modified: 2024-04-10