Whether providing open data from our County systems or maps and information, Cook County is committed to providing transparency and open government. 

Home Rule Tax Web (mobile) application

The Home Rule Tax Reward program rewards those individuals who report violations of the Cook...

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Justice Advisory Council Board Members 2019

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Cook Central: Centralizing Maps, Apps, and Data

From property and boundary data, to transportation, social service, and environmental...

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Intergovernmental Agreement

In May 2019, Cook County and the Metropolitan Water Reclamation District of Greater Chicago ("MWRD") entered...

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Tell us what you think of the Policy Roadmap Public Dashboard and our new Open Performance Site! We would love to hear what you think. Please send...

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Advancing equity, specifically racial equity, has been a central principle of Offices Under the President (OUP) under the leadership of President...

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Video Gaming

Cook County now allows establishments licensed to sell alcohol for on-site consumption to...

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