
About data.cityofchicago.org
Chicago’s Data Portal 2.0 – The City of Chicago’s Data Portal is dedicated to promoting access to government data and encouraging the development of creative tools to engage and serve Chicago’s diverse community. Here you’ll find essential data presented in easy-to-use formats to help Chicagoans keep track of how their government is performing and build innovative applications to benefit residents and visitors alike.
“Data belongs to the people, and there is an enormous desire on the part of residents to participate in government and find ways to contribute. This [apps] competition will allow them to create innovative solutions and experiment with applications that can make all of our lives better.”
Mayor Rahm Emanuel, City of Chicago.
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Featured Dataset

- Site
- data.cityofchicago.org
- On Twitter
- @ChicagoCDO #openchicago
- Live Since
- February 2010. Data Portal 2.0, relaunched in June 2011
Press
Chicago CTO Says Senior Municipal Staff are Changing the Way Cities Work
by Nick Judd, Tech President, June 28, 2011
City data? Cash? There’s an app for that
by Leonor Vivanco, RedEye, June 24 2011
City data? Cash? There’s an app for that
by Leonor Vivanco, RedEye, June 24 2011
Chicago puts lobbyists’ pay online
by Hal Dardick and Kristen Mack, Chicago Tribune, June 16 2011
Civic Apps
Apps for Metro Chicago
This is the first civic apps competition offering data from four governmental agencies: The City of Chicago, the Chicago Metropolitan Agency for Planning, Cook County, and the State of Illinois. learn more