The biennial Scavenger Sale (conducted in odd-numbered years) offers taxes on properties that have delinquencies on three or more years that were not purchased at an Annual Tax Sale. In Cook County, the sale has traditionally taken place in the fall or early winter months.For more information on Scavenger Sales see http://www.cookcountytreasurer.com/scavengersale.aspx

Foreclosures recorded from January 1, 2012 through November 29, 2012

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 immediately preceding tax year are delinquent on a parcel, they are offered for sale to tax purchasers at the Annual Tax Sale. The buyer is buying a tax lien on the property not the property itself. For more information on Annual Tax Sales visit http://www.cookcountytreasurer.com/annualtaxsale.aspx and https://www.cooktaxsale.com.

Click on the link to see or download a PDF of the contract. This dataset contains new contracts and amendments. Amendments may be contract extensions, renewals, increases, decreases, scope changes, or any combination of these. Amendment data is included starting with Fiscal Year 2015 (December 2014).

Updated periodically--Click on the link to see or download a .pdf of material related to the contract.

On October 11, 2017, the Cook County Board repealed the Sweetened Beverage Tax Ordinance, effective December 1, 2017. This dataset is historical and no longer maintained.

Disclaimer: This list was last updated on 10/05/2017 and is updated monthly on the website. If up-to-the-minute accuracy is needed, contact us at 312-603-6328. This dataset contains registered Sweetened Beverage Distributors.

The following page lists the unclaimed indigents cremated by the Cook County Medical Examiner’s Office.

This dataset contains our most up to date list of Unclaimed Persons found in Cook County.

If you feel you are the next of kin to any of the individuals listed, Please contact Rebeca Perrone, Indigent Coordinator, at 312-997-4480. During regular business hours: Monday through Friday, 7 a.m. to 3 p.m.

Statement of Public Notice: Unclaimed indigents will be cremated or buried at County expense within 90 days of admission to our facility as dictated by the Cook County Medical Examiner Ordinance

Historic land, building, and total assessed values for all Cook County parcels appealed with the Board of Review, from 2010 to present. The Board of Review uses these values for reporting, evaluating assessment performance over time, and research.

When working with Parcel Index Numbers (PINs) make sure to zero-pad them to 14 digits. Some datasets may lose leading zeros for PINs when downloaded

This data is parcel-level. Each row contains the assessed values for a single PIN for a single year. Important notes:
• Assessed values are available when the Board of Review closes appeals and certifies the values.
• The values in this data are assessed values, NOT market values. Assessed values must be adjusted by their level of assessment (https://prodassets.cookcountyassessor.com/s3fs-public/form_documents/classcode.pdf) to arrive at market value. Note that levels of assessment may have changed throughout the time period covered by this data set.
• This data set will be updated when each township is certified. However, note that there may be discrepancies between the Board of Review’s data and the Assessor's site and this data set, as each pull from a slightly different system.
• Current property class codes, their levels of assessment, and descriptions can be found on the Assessor's website (https://prodassets.cookcountyassessor.com/s3fs-public/form_documents/classcode.pdf). Note that class codes details can change across time.
• The Change Reason and No Change Reason fields are only populated starting with the 2015 year data.

All data provided here is prepared for internal purposes by the County of Cook only is provided to the public as a courtesy.

While efforts have been made to be as accurate as possible, Cook County provides the data for personal use “as is”. The data is not guaranteed to be accurate, correct, or complete. Information provided should not be used as a substitute for legal, business, tax, or other professional advice. The recipient/viewer should contact appropriate regulating agencies to determine accuracy or suitability of the data for a particular use. This data may not be used in states that do not allow the exclusion or limitation of incidental or consequential damages.

Cook County or its staff assume no liability whatsoever for any losses that might occur from the use, misuse, or inability to use its geospatial data, maps or websites. All materials appearing on a map, geospatial data or County web site are transmitted without warranty of any kind and are subject to the terms on this disclaimer.

This dataset provides the list of vendors and contracts to be executed by the Office of the Chief Procurement Officer and is updated 3 days before award.

M/W/DBE Participation Types
MBE = Minority Business Enterprise
WBE = Women Business Enterprise
DBE = Disadvantaged Business Enterprise
Native American (4)
African American (5)
Female (7)
Asian (8)
Hispanic (9)