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Employee Payroll
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... -
Public Health: Causes of Death
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... -
Medical Examiner Case Archive
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... -
Assessor - Parcel Sales
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... -
Cook County Clerk -- Statement of Economic Interests Filers
The update script for this dataset is currently broken. Please see the Cook County Clerk SEI Search for recent filings. For extended information about Statements of Economic... -
Assessor - Parcel Universe (Current Year Only)
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... -
Public Health Birth Data: Pregnancy Health and Risk Factors
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... -
Treasurer - Scavenger Tax Sale
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... -
Assessor - Assessed Values
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... -
Medical Examiner - Unclaimed Persons
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... -
Assessor - Single and Multi-Family Improvement Characteristics
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... -
Procurement - Buying Plan - Fiscal Year 2026
This dataset indicates the services that the County expects to procure in 2026, allowing vendors to prepare for upcoming solicitations. The Office of the Chief Procurement... -
Medical Examiner - Unidentified Persons
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... -
Cook County Clerk - Tax code Rates
Tax code rates for Tax Years 2006 through 2013. Data is updated yearly. For more information on Tax codes visit the Cook County Clerk's website at:... -
Public Health Birth Data: Sociodemographic Characteristics of Mother
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... -
Procurement - Awarded Contracts & Amendments
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,... -
Cook County Officials Dual Employment Disclosure Form
Pursuant to Section 2-573 of the Cook County Code of Ethics, officials that hold employment outside their elected office shall disclose such employment, or any change in... -
ETSB 911 Monthly Call Volume
Monthly volume of E911 calls received by Cook County ETSB 911. Counts are broken up by call type and Remote Site location. The Cook County ETSB provides 9-1-1 services for all... -
Dispositions
A Note from the State's Attorney's Office as of 12/30/2024: The Cook County State's Attorney's Office believes data transparency is an important accountability and public safety...