Maps & Data


Many visitors come to our website seeking data about Cook County.  Residents, taxpayers, contractors, visitors, business developers, to name a few groups, will have an interest in our online data.

 Please go to:

 MetroChicago Data Website – Convergence cloud of data from Cook County, City of Chicago and State of Illinois

Cook County Open Data Project

Geographic Information System (GIS)

U.S. Census Data for Cook County – Quick Census Facts

In the future, we anticipate more data will be available through this website.

We encourage you to bookmark this link and keep it as a reference.