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Finding and Using GIS Data

The AGS Library's Guide to Finding GIS data and working with it for your specific project needs

Chicago Data Portal

Chicago Data Portal details

City of Chicago Data Portal


About: The City of Chicago's open data portal lets you find city data, lets you find facts about your neighborhood, lets you create maps and graphs about the city, and lets you freely download the data for your own analysis. Many of these datasets are updated at least once a day, and many of them are updated several times a day. The open data portal is required under an executive order signed by Mayor Rahm Emanuel on December 10, 2012.

Data Available: Depending on data type, data is available for download as .SHP, .KML, .TIF, and others.

Topics Include: Administration & Finance, Buildings, Community, Education, Environment, Ethics, Events, FOIA, Facilities & Geographic Boundaries, Health & Human Services, Historic Preservation, Parks & Recreation, Public Safety, Sanitation, Service Requests, Transportation

Chicago Data Portal general instructions

How to get GIS Data

1. Navigate to the data portal

2. Search or browse for a dataset by category

3. Use the filters in the left hand column to specify data type

4. Each dataset is unique in the interface used for viewing and downloading the data, look for 'Download' and 'Export' buttons to download data


Request Data from the AGSL

Still Stuck?

If you are having trouble finding the data you are looking for, the AGS Library may be able to help.

  • Use the buttons below to view our Geospatial Data homepage, request data from our collection, or e-mail us with questions.
  • You can make an appointment for an in-person or virtual consultation, just e-mail
  • We are located in the Golda Meir Library at UWM on the 3rd floor of the East Wing. Phone: (414) 229-6282.
Geospatial Data Homepage Data Request Form E-mail us