Johnson County, Illinois

Look up your Johnson County property assessment.

Find a Johnson 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: Johnson 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 Johnson County 2026 Board of Review filing window. 2026 deadline: TBD. Check with your assessor (Johnson County Supervisor of Assessments) or the Johnson 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 Johnson County parcel number like 0632104000 or a street address.