Cook County of Illinois
Overview
- Type: County Government
- Total datasets: 492
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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: 117 | Catalog Last Checked: July 07, 2026 at 09:10 PM -
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 recreate the former...
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This dataset contains new contracts and amendments procured by Cook County. This includes approved blanket purchase agreements (BPAs), contract purchase agreements (CPAs), and standard purchase...
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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: 23 | Catalog Last Checked: July 07, 2026 at 09:09 PM -
A current-year-only universe of Cook County parcels with attached geographic, governmental, and spatial data. When working with Parcel Index Numbers (PINs) make sure to zero-pad them to 14...
Search relevance: 1.00 | Views last month: 22 | Catalog Last Checked: July 07, 2026 at 09:09 PM -
This dataset is sourced from the Illinois Department of Public Health and curated by the Cook County Department of Public Health. It covers a select set of causes of death across the County...
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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...
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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...
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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...
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This dataset comprises of Collective Bargaining Agreements negotiated by bargaining units and ratified by the Cook County Board of Commissioners.
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This dataset contains address points for addresses in Cook County. An ESRI Service is available at: https://hub-cookcountyil.opendata.arcgis.com/datasets/5ec856ded93e4f85b3f6e1bc027a2472_0/ Data...
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Cook County is home to over 130 municipalities. Our list gives each one along with the City Hall Address and URL.
Search relevance: 1.00 | Views last month: 11 | Catalog Last Checked: August 06, 2025 at 10:38 AM -
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-pad them to 14...
Search relevance: 1.00 | Views last month: 10 | Catalog Last Checked: July 07, 2026 at 09:09 PM -
Commercial valuation data collected and maintained by the Cook County Assessor's Office, from 2021 to present. The office uses this data primarily for valuation and reporting. This dataset...
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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 uses this data...
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The Independent Inspector General submits a Quarterly Report to the President and the County Board. The Quarterly Report is released the 15th day of January, April, July, and October of each year....
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This data is compiled by the Cook County Department of Public Health using data from the Illinois Department of Public Health Vital Statistics. It includes the annual number of deaths, crude and...
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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: 7 | Catalog Last Checked: July 07, 2026 at 09:09 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: 7 | Catalog Last Checked: July 07, 2026 at 09:08 PM -
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 Public Health. This...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: July 07, 2026 at 09:09 PM
