Cook County of Illinois
Overview
- Type: County Government
- Total datasets: 627
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Assessor - Parcel Sales Trending
Parcel sales for real property in Cook County, from 1999 to present. The Assessor's Office uses this data in its modeling to estimate the fair market value of unsold properties. When working with...
Search relevance: 1.00 | Views last month: 115 | Catalog Last Checked: November 03, 2026 at 11:23 PM -
Employee Payroll Trending
Employee payroll data for all Cook County employees excluding Forest Preserves, indicating amount of base salary paid to an employee during the County fiscal quarter. Salaries are paid to...
Search relevance: 1.00 | Views last month: 101 | Catalog Last Checked: September 10, 2026 at 06:28 PM -
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 factor that falls...
Search relevance: 1.00 | Views last month: 92 | Catalog Last Checked: November 03, 2026 at 11:22 PM -
Situs and mailing addresses of Cook County parcels. Used by the Assessor's office to mail assessment notices. This dataset was updated in March 2026 to include both owner and taxpayer...
Search relevance: 1.00 | Views last month: 90 | Catalog Last Checked: November 03, 2026 at 11:22 PM -
A complete, longitudinal universe of Cook County parcels with attached geographic, governmental, and spatial data starting in 1999. This dataset is useful for analysis of data from previous tax...
Search relevance: 1.00 | Views last month: 73 | Catalog Last Checked: November 03, 2026 at 11:23 PM -
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 performance over time, and...
Search relevance: 1.00 | Views last month: 64 | Catalog Last Checked: November 03, 2026 at 11:23 PM -
A universe of current Cook County parcels with attached geographic, governmental, and spatial data. This dataset contains the current universe of parcels in Cook County. For analyses of prior tax...
Search relevance: 1.00 | Views last month: 62 | Catalog Last Checked: November 03, 2026 at 11:23 PM -
Residential single- and multi-family (fewer than 7 units) property characteristics collected and maintained by the Assessor's Office for all of Cook County, from 1999 to present. The office uses...
Search relevance: 1.00 | Views last month: 60 | Catalog Last Checked: November 03, 2026 at 11:23 PM -
Historical permit data submitted by municipalities and township assessors to the Cook County Assessor's Office. When working with Parcel Index Numbers (PINs) make sure to zero-pad them to 14...
Search relevance: 1.00 | Views last month: 57 | Catalog Last Checked: November 03, 2026 at 11:22 PM -
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...
Search relevance: 1.00 | Views last month: 54 | Catalog Last Checked: November 03, 2026 at 11:22 PM -
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 for valuation,...
Search relevance: 1.00 | Views last month: 54 | Catalog Last Checked: November 03, 2026 at 11:22 PM -
Parcels with property tax-exempt status across all of Cook County per tax year, from Tax Year 2022 on, with geographic coordinates and addresses. Properties of religious, charitable, and...
Search relevance: 1.00 | Views last month: 40 | Catalog Last Checked: November 03, 2026 at 11:23 PM -
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...
Search relevance: 1.00 | Views last month: 38 | Catalog Last Checked: November 03, 2026 at 11:22 PM -
Data Quality Warning: Appeals for many years are currently missing from this dataset as we repopulate our system of record with updated records. We will update this text when the data has been...
Search relevance: 1.00 | Views last month: 36 | Catalog Last Checked: November 03, 2026 at 11:23 PM -
This dataset includes all Recycling Facility and Clean Construction Demolition Debris (CCDD) Fill Operation permits reviewed by the Cook County Department of Environment &...
Search relevance: 1.00 | Views last month: 34 | Catalog Last Checked: November 03, 2026 at 11:22 PM -
This dataset includes all Temporary Rock Crusher permits approved by the Cook County Department of Environment & Sustainability. Temporary Rock Crusher permits are required for the reprocessing,...
Search relevance: 1.00 | Views last month: 32 | Catalog Last Checked: November 03, 2026 at 11:22 PM -
This dataset contains descriptions of unidentified persons whose cases have been processed by the Medical Examiner’s Office. An unidentified person is an individual whose identity is unknown at...
Search relevance: 1.00 | Views last month: 31 | Catalog Last Checked: November 03, 2026 at 11:23 PM -
This dataset includes all asbestos abatement (including Operations and Maintenance Asbestos Removal Permits) and demolition permits received by the Cook County Department of Environment &...
Search relevance: 1.00 | Views last month: 26 | Catalog Last Checked: November 03, 2026 at 11:23 PM -
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,...
Search relevance: 1.00 | Views last month: 21 | Catalog Last Checked: November 03, 2026 at 11:23 PM -
This dataset contains our most up to date list of unclaimed persons found in Cook County. An unclaimed person is a deceased individual who has been positively identified and has been examined by...
Search relevance: 1.00 | Views last month: 21 | Catalog Last Checked: November 03, 2026 at 11:23 PM
