Geographic Information Systems (GIS)

The mission of the Geographic Information Systems (GIS) program is to employ geospatial technology to cost-effectively improve the delivery of services and the quality of decision-making for the City of Chicago.

Geospatial Data

More than 250 data sets of GIS and geospatial data are available on Chicago’s Data Portal where they are organized under the Topic "gis": http://data.cityofchicago.org/browse?tags=gis 

GIS Liability Statement and Disclaimer:

The data provided is a public resource of general information.  The City of Chicago makes no warranty, representation or guaranty as to the content, sequence, accuracy, timeliness or completeness of any of the database information provided herein.  The reader should not rely on the data provided herein for any reason.  The City of Chicago explicitly disclaims any representation and warranties, including, without limitation, the implied warranties of merchantability and fitness for a particular purpose.  The City of Chicago shall assume no liability for:

1. Any errors, omissions, or inaccuracies in the information provided regardless of how caused; or

2. Any decision made or action taken or not taken by reader in reliance upon any; information or data furnished hereunder.

Interactive Maps

  • Chicago Interactive Map

    Includes police stations, fire stations, schools, clinics and many other facilities as well as political boundaries, transit routes, street closures, TIF districts, liquor licenses and other data of general interest.

  • Chicago Ward Map

    Chicago has fifty wards. Each ward is a political district, and the voters in each ward are represented by an elected Alderman. The fifty Aldermen make up the Chicago City Council. Ward boundaries change after each United States census in order to reflect population shifts within the city and to ensure that each ward has approximately the same population.

    A catalog of PDF files for all Chicago Wards

  • Community Area Map

    Chicago is divided into seventy-seven (77) Community Areas. These boundaries do not change over time (as political boundaries do), so that information about the city can be consistently collected and analyzed over long periods of time.

  • Chicago Neighborhood Map

    Please Note: Chicago neighborhood names and neighborhood boundaries can change over time. Different people may have different perspectives on the names and locations of specific neighborhoods.

    The only map of Chicago neighborhoods approved by the City Council was finalized in 1993, and was based on a survey conducted in 1978. The map that resulted from that process is the neighborhood map available here.

    City government does not recognize or use Chicago neighborhood boundaries for any official purposes.

OTHER RESOURCES