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Datasets

  • Procurement - Awarded Contracts & Amendments    recent views

    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,...
  • Medical Examiner - Unclaimed Persons    recent views

    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...
  • Medical Examiner Case Archive    recent views

    Effective April 1, 2022, the Cook County Medical Examiner’s Office no longer takes jurisdiction over hospital, nursing home or hospice COVID-19 deaths unless there is another...
  • Procurement - Intent to Execute    recent views

    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...
  • Procurement - Bid Tabulations    recent views

    The bid tabulations provided herein are preliminary and are for informational purposes only. The purpose of providing this preliminary information is to improve process...
  • Assessor - Parcel Proximity    recent views

    Cook County 10-digit parcels with attached distances to various spatial features. When working with 10-digit Parcel Index Numbers (PINs) make sure to zero-pad them to 10 digits....
  • Cook County Municipalities with City Hall Addresses and URLs    recent views

    Cook County is home to over 130 municipalities. Our list gives each one along with the City Hall Address and URL.
  • Assessor - Appeals    recent views

    This is a preliminary version of a new open data asset and will change before the final version is published. Use accordingly. NOTE: Between Sept. 26, 2023 and Nov. 24, 2023,...
  • Assessor - Single and Multi-Family Improvement Characteristics    recent views

    Single and multi-family (less than 7 units) property characteristics collected and maintained by the Assessor's Office for all of Cook County, from 1999 to present. The office...
  • Assessor - Parcel Sales    recent views

    Update 10/31/2023: Sales are no longer filtered out of this data set based on deed type, sale price, or recency of sale for a given PIN with the same price. If users wish to...
  • Assessor - Property Tax-Exempt Parcels    recent views

    Parcels with property tax-exempt status across all of Cook County per tax year, from Tax Year 2022 on, with geographic coordinates and addresses. As of 2017 owner names in this...
  • Assessor - Assessed Values    recent views

    Land, building, and total assessed values for all Cook County parcels, from 1999 to present. The Assessor's Office uses these values for reporting, evaluating assessment...
  • Assessor - Parcel Universe    recent views

    A complete, historic universe of Cook County parcels with attached geographic, governmental, and spatial data. When working with Parcel Index Numbers (PINs) make sure to zero-...
  • CCP Invoice Register    recent views

    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...
  • Human Resources - Exempt Positions    recent views

    An exempt position is one that involves policy making to an extent or is confidential in such a way that political affiliation is an appropriate consideration for the effective...
  • Cook County Check Register    recent views

    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...
  • Assessor - Residential Condominium Unit Characteristics    recent views

    Residential condominium unit characteristics collected and maintained by the Assessor's office for all of Cook County, from 1999 to present. The office uses this data primarily...
  • Assessor - Parcel Addresses    recent views

    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...
  • Medical Examiner - Unidentified Persons    recent views

    This dataset contains descriptions of unidentified remains whose cases have been processed by the Medical Examiner’s Office. Call 312-666-0500 to speak to Deputy Chief...
  • Comptroller - Comprehensive Annual Financial Report (CAFR)    recent views

    The County has prepared the CAFR in accordance with Generally Accepted Accounting Principles (GAAP). GAAP require that management provide a narrative introduction, overview and...