Assessment Office:


Chief County Assessment Office

From Your Chief County Assessor

Our Mission Statement: To provide fair, accurate, and equitable assessments to all property owners in Rock Island County


I have been engaged in assessment valuations since 1998 and have served as the Rock Island County Supervisor of Assessments since 2002. As the Chief County Assessment Officer, I have the responsibility for coordinating the countywide assessment process, equalizing assessments among the county's 18 townships, applying various property tax exemptions, serving as the Clerk of the Board of Review, and chairing the County Farmland Assessment Review Committee.

As your county assessor, I would like to take this opportunity to welcome you to our website. This site has been prepared to help you better understand the functions of the Assessor's Office. My goal is to provide you, the property owner and taxpayer, with information that will assist you in understanding the assessment process.

As assessor, it is my responsibility to insure that all real property is treated fairly and equitably in accordance with the Illinois Property Tax Code. My staff and I are committed to serving you efficiently and professionally. Please contact a staff member or myself with questions regarding your assessed value or other matters relating to your assessment.

FOIA Policy PDF Document


Larry A. Wilson
Chief County Assessor

Chief County Assessor/Board of Review - Announcements

New! Sales Listing Reports!
The Chief County Assessment Office has added sales listing reports to their page. Click here to view the reports.

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Larry A. Wilson - Chief County Assessor Click to send e-mail 
Rock Island County Office Building (map ExternalLink.gif)
Second Floor - 1504 Third Avenue, Rock Island IL, 61201-8624

Phone: (309) 558-3660     Fax: (309) 558-3658     Hours: 8:00 AM to 4:30 PM - Monday thru Friday