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#1 County
Assessor - 2022 Open Data Refresh
- Organization: Cook County of Illinois
- Dataset Last Updated: May 16, 2022
A brief outline of the changes users can expect from the Assessor's open data offerings.

Search relevance: 198.80 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 06:27 PM
#2 County
Assessor [Archived 05-31-2023] - Parcel Universe
- Organization: Cook County of Illinois
- Dataset Last Updated: January 27, 2026
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...
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Search relevance: 53.39 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 06:28 PM

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