Assessor - Parcel Addresses

Situs and mailing addresses of Cook County parcels. Used by the Assessor's office to mail assessment notices. <i><b>As of 2017 mailing addresses in this dataset are no longer being regularly updated. We are trying to figure out a solution to this problem.</b></i> When working with Parcel Index Numbers (PINs) make sure to zero-pad them to 14 digits. Some datasets may lose leading zeros for PINs when downloaded. Additional notes: <ul><li>Mailing addresses can be out of date or fail to properly reflect deed transfers.</li> <li>Newer properties may be missing a mailing or property address, as they need to be assigned one by the postal service.</li> <li>This dataset contains data for the current tax year, which may not yet be complete or final. Assessed values for any given year are subject to change until <a href="https://www.cookcountyassessor.com/assessment-calendar-and-deadlines">review and certification of values by the Cook County Board of Review</a>, though there are a few rare circumstances where values may change for the current or past years after that.</li> <li>Rowcount for a given year is final once the Assessor <a href="https://www.cookcountyassessor.com/assessment-calendar-and-deadlines">has certified the assessment roll</a> all townships.</li> <li>Data will be updated monthly.</li></ul>For more information on the sourcing of attached data and the preparation of this dataset, see the <a href="https://github.com/ccao-data/wiki/blob/master/SOPs/Open-Data.md">Assessor's Standard Operating Procedures for Open Data</a> on GitHub. <a href="https://datacatalog.cookcountyil.gov/stories/s/gzdr-q7c4">Read about the Assessor's 2025 Open Data Refresh.</a>

[
  "Property & Taxation"
]