Johnson County, IL: assessment records
The property assessment records the Johnson County assessment office publishes. Look up a parcel by owner, address or parcel number to see who owns it and what it is assessed at.
Johnson County assessment records
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What you can look up here
- Property ownerFind the owner of record for a parcel.
- Parcel numberLook up a parcel by its number, or find the number for an address.
- Property recordsValues, classification, building details, and sales history for a parcel.
- Property taxesTax statements, amounts due, values, and how to pay.
About this resource
- Provided by
- IllinoisAssessors.com, the county assessment office directory
- Covers
- Johnson County, IL
- Link status
- Opened normally at the last check
- Link checked
- Oct 17, 2026
- Web address
- https://johnsonil.devnetwedge.com/
Who to contact
- Johnson County Supervisor of AssessmentsThe Johnson County Supervisor of Assessments keeps assessment records and handles homestead exemptions and assessment appeals.
- Phone
- (618) 658-8010
- Address
- 105 N 6th Street, Vienna, IL 62995
- Johnson County TreasurerThe Johnson County Treasurer sends and collects property tax bills.
- Phone
- (618) 658-8042
- Address
- 105 N 6th Street, Vienna, IL 62995
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