Board of Review District based on 2010 census.

This data includes 2009 precincts used for all elections 2010 thru 2011. The purpose of the feature class is to describe and locate election precincts in Cook County, Illinois...

This dataset provides a cumulative record of payment and invoice details for County suppliers, vendors and other payees. Data is from December 1, 2016 to present. Payment data...

The Parcel 2007 feature contains tax parcel polygons for the 2007 property tax assessment at the County. This feature reflects tax parcel polygons as they existed from 1/1/2007...

Cook County GIS Dept map of Leyden, Norwood Park & Jefferson Townships in a pdf format. Includes streets and municipalities.

Forest Preserve District of Cook County boundaries. To view or use these shapefiles, compression software and special GIS software, such as ESRI ArcGIS, is required.

Monthly volume of E911 calls received by Cook County ETSB 911. Counts are broken up by call type and Remote Site location. The Cook County ETSB provides 9-1-1 services for all...

Under Illinois law, the Treasurer’s Office is required to hold an Annual Tax Sale. The sale is held once a year, sometime after the Second Installment. If property taxes for the...

Data Updated 10/27/2014. This dataset contains the Polling Place locations in suburban Cook County for the 2014 Gubernatorial Election on November 4. For more information on...

TIF District boundaries. TIF districts receive money from property taxes by utilizing increases in the value of properties located in the TIF. There is no tax rate for TIF...

Data covers December 1, 2010 through September 22, 2011

A list of Cook County facilites by address, main phone number, and 10-digit PIN. Data last updated August 30, 2011.

Community College Tax Districts in Cook County for tax year 2013.

Metropolitan Water Reclamation Taxing Districts in Cook County

This dataset is part of a series of seven datasets about Cook County births sourced from the Illinois Department of Public Health and curated by the Cook County Department of...

The update script for this dataset is currently broken. Please see the Cook County Clerk SEI Search for recent filings. For extended information about Statements of Economic...

Under Cook County Ethics Code Section 2-585, campaign contributions to County elected officials are limited to $1,500 per calendar year if the contributor is currently doing or...

Situs and mailing addresses of Cook County parcels. Used by the Assessor's office to mail assessment notices. As of 2017 mailing addresses in this dataset are no longer being...

Cook County GIS Dept map of Berwyn, Cicero, Oak Park & Stickney Townships. West and South Towns in a pdf format. Includes streets and municipalities.

Archive of budget PDFs starting with fiscal year 2002.