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Supervisor of Assessments

Our mission: Serve Taxpayers, Township Assessors and the Board of Review in a professional, helpful and friendly manner while ensuring the timely and accurate processing of assessments, exemptions and tax maps.

2019 Senior Assessment Freeze Renewal Applications will be mailed out the week of 03/25/2019 and are also now available online. 


2019 Owner Occupied Rental Agreement and Addendum 


Information about Assessment Appeals, Exemptions and Tax Rates (pdf version)


Brochure 1

This brochure is available in the Supervisor of Assessments Office


UPDATED FILL-IN FORM! General Homestead Exemption Application

Please take a few moments to complete a survey so that we may better serve our taxpayers! You may either fill it in, print and send by U.S. Mail or click "send by email" at the bottom of the survey.



A Brochure with information regarding distress sales is available in the Supervisor of Assessments Office and at the link below:

What Taxpayers Should Know About Distress Sales

WINGIS Single Family Sales Locator Tool- Now Available!

Select "WINGIS" on the right.
The "Sales Locator" tool link is located at the top of the main WINGIS page under Maps.

Winnebago County covers 520 Square Miles and has a population of 295,266 (2010) with 122,144 taxable parcels.

The Supervisor of Assessments Office is responsible for the publication and mailing of Assessment Change Notices on all taxable parcels. The Office also maintains all records for Homestead Exemptions. They assist taxpayers with the filing of property tax exemptions and any questions they may have in understanding the assessment process for their property.

The Supervisor of Assessments Office also assists Township Assessors in the performance of their duties, as well assisting the Board of Review in completing their responsibilities to maintain a timely tax cycle.

Thomas R. Hodges, Supervisor of Assessments:

The supervisor of assessments is an appointed county official consistent with Winnebago County Code and State of Illinois 35 ILCS 200/. 

Contact Us

404 Elm St. Rm 301
Rockford, IL 61101
Phone: 815-319-4460
Fax: 815-319-4461

Office Hours: Monday through Friday 8:00am - 5:00pm

Transparency Reports

Waste-Fraud-Abuse Hotline: click here

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