A brief outline of the changes users can expect from the Assessor's open data offerings.

This check register provides a cumulative record of payments to County suppliers, vendors and other payees as approved by the Cook County Board of Commissioners. Data covers December 2009 through November 2016. For data after November 2016 click here: https://datacatalog.cookcountyil.gov/Finance-Administration/Cook-County-Check-Register/4h27-5s9x

This contains information about deaths that occurred in Cook County that were under the Medical Examiner’s jurisdiction. Not all deaths that occur in Cook County are reported to the Medical Examiner or fall under the jurisdiction of the Medical Examiner. The Medical Examiner’s Office determines cause and manner of death for those cases that fall under its jurisdiction. Cause of death describes the reason the person died. This dataset includes information from deaths starting in August 2014 to the present, with information updated daily.

A brief outline of the changes users can expect from the Assessor's open data offerings.

The bid tabulations provided herein are preliminary and are for informational purposes only. The purpose of providing this preliminary information is to improve process transparency. The information contained in the preliminary bid tabulations is subject to change pending math review, analysis of all bids, and review of documentation provided.
Bids: All bids estimated at $25,000 or more are publicly opened and read at the time, date, and place specified in the bid document.
RFP/RFQ/RFI: Responses to RFP/RFQ/RFI are not publicly opened. Names of respondents will be made available based on the names identified on the sealed package and is, therefore, subject to change.

For bid tabulations before June 2016 see https://datacatalog.cookcountyil.gov/d/pn38-yupm

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 prior to December 1, 2016 is archived in the Cook County Check Register here: https://datacatalog.cookcountyil.gov/Finance-Administration/Cook-County-Check-Register/gywr-fjeh

2012 budget requests by line-item, by bureau, and elected official.

The Parcel 2015 feature contains tax parcel polygons for the 2015 property tax assessment at the County. This feature reflects tax parcel polygons as they existed from 1/1/2015 through 12/31/2015. Each parcel is uniquely identified with a Property Index Number (PIN).