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Important: This site provides access to the Assessment and Tax office property records database in Lake County, Illinois. You can access public records by search by street address, Parcel ID or various other methods.

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Please understand that the Lake County Tax Offices operate on different years, due to the Illinois property tax cycle taking place over a two-year timeframe. The tax offices are working in the 2020 year, which corresponds to the property tax bill property owners will receive in early May of 2021. The assessor’s offices are working in the 2021 year currently. The Year selection in the upper right of each datalet screen can be changed by customers, so that they can get the best information for their needs.

Disclaimer: The County of Lake tries to ensure that the information made available on lakecountyil.gov is accurate and complete. The County cannot guarantee against unauthorized modifications of information or errors made in posting data. Lake County does not represent or warrant that access to the service will be uninterrupted or that there will be no failures, errors or omissions or loss of transmitted information. Lake County assumes no liability or responsibility for the quality, content, accuracy, or completeness of the information, text, graphics, links and any other items contained on this service or any other system or service. The materials contained on this site have been compiled from a variety of sources and are subject to change without notice. The information, documents and related graphics published on this website could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein. Lake County may make improvements and/or changes in the services and/or the content(s) described herein at any time.