From property and boundary data, to transportation, social service, and environmental data, Cook County owns and manages a huge amount of geospatial data. Cook Central is the public portal for Geographic Information Systems showcasing open spatial data, interactive mapping applications and an application programming interface for community members to pioneer unique, innovative applications with Cook County’s authoritative data.
Cook Central is built on the ArcGIS platform by Esri, Inc.
If you are familiar with this Maps and Geospatial Data page and miss the old format, the following links go to the same maps and apps on Cook Central.
If you are looking for Connect to Cook, Cook Viewer, TIF Viewer and other apps, go to the Application Gallery at Cook Central.
If you are looking for ready-to-print PDFs of commissioner district and township maps, go to the Printable Maps section of Cook Central.
If you are interested in acquiring custom maps or data from the County, please visit the Cook County Map Center