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...

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...

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...

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...

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...

Historical permit data submitted by municipalities to the Cook County Assessor's Office. When working with Parcel Index Numbers (PINs) make sure to zero-pad them to 14 digits....

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...

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...

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,...

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....

Appeals for many years are currently missing from this dataset as we repopulate our system of record with updated records. We expect all missing appeals to be available again...

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...

Data last updated September 8th, 2011

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...

Cook County GIS Dept map of Worth & Lake Townships in a pdf format. Includes streets and municipalities.

Metropolitan Water Reclamation Taxing Districts in Cook County

Park Taxing Districts within Cook County

The Office of the County Auditor conducts follow-ups on recommendations made by the office to determine if corrective actions have been taken. This dataset is comprised of the...

Neighborhood polygons used by the Cook County Assessor's Office for valuation and reporting. These neighborhoods are specific to the Assessor. They are intended to represent...

Total Home Rule Taxes collected per month. Data covers December 2010 through June 2011.