Union County, Illinois

Look up your Union County property assessment.

Find a Union County parcel by address or PIN in the county's public wEDGE records and learn how a Board of Review appeal works.

County-confirmed parcel lookup Board of Review filing guidance
PRELIMINARY estimates: Union County shows a preliminary savings range from the assessed value only. Comparable-sales screening is not available yet.

2026 filing window not verified

HomeTaxChallenge has not verified the Union County 2026 Board of Review filing window. 2026 deadline: TBD. Check with your assessor (Union County Supervisor of Assessments) or the Union County Board of Review for the current deadline before filing. Illinois appeals are filed with the county Board of Review; the next level is the Property Tax Appeal Board (PTAB).

Step 1

Find the property

Enter a Union County parcel number like 140010530 or a street address.