Historical budget appropriations from 2016 to present budget

This data contains every residential Property Index Number (PIN) and corresponding Assessed Values from significant stages in the assessment process.

This data was replaced with the more comprehensive Cook County Assessor's Fair Cash Values.

Public Statements issued by the Office of the Independent Inspector General regarding matters associated with the Metropolitan Water Reclamation District of Greater Chicago.

A data set showing algorithmically determined sales comparables for single family properties in Lake Township

2010 U.S. Census Mail Return Rates and Demographics by Tract for Cook County. According to the US Census, tracts that fell below the 73% threshold were designated as containing "hard-to-count" (HTC) populations.
The data supplies two primary groups of information: 1) details on the mail return rates for each census tract in Cook County 2) Estimated demographic characteristics for each census tract in Cook County.
For detailed information on the data please go to the following link:
https://datacatalog.cookcountyil.gov/stories/s/hza3-k7kt

The Independent Inspector General submits Quarterly Reports to the MWRD Board of Commissioners and Executive Director. The Quarterly Report is released the 15th day of January, April, July, and October of each year. Quarterly Reports chronicle the number and type of investigations initiated, concluded or pending since the date of the last report and whether any recommendations for remedial action were made and whether or not the recommendations were followed by the MWRD.

As of February 14, 2020 this dataset will be considered archived information and will no longer be updated.

First-pass property values as assessed by the Cook County Assessor in their Computer Assisted Mass Appraisal system used to assess residential properties. This dataset contains first pass values for 2019 and corresponds with residential PINs in the Cook County Assessor's Assessment Data. These are NOT final assessed values. For Disclaimers, see dataset narrative at https://datacatalog.cookcountyil.gov/stories/s/p2kt-hk36

This is the data set of residential sales used by the Cook County Assessor in their Computer Assisted Mass Appraisal system used to assess residential property values. This data set contains property information for every arm's-length residential sale in Cook County where class is within a specified list of classes. For disclaimers, see data set narrative at https://datacatalog.cookcountyil.gov/stories/s/p2kt-hk36

This data set was replaced by the more comprehensive data set Cook County Assessor's Sales.