Union County property records
Where to look up owners, values, tax bills, parcel maps, deeds and value appeals in Union County, Illinois. Each link goes to the county or state office that keeps the record.
Where each record lives
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Owner, land, building and value
Look up an owner’s name and mailing address, land and building details and the assessed value in the Union County property search.
These records are kept by the Union County Supervisor of Assessments.
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Tax bills and payments
Property taxes are billed and collected by the Union County Treasurer.
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Deeds, liens and recorded documents
Search deeds, mortgages, liens and other recorded documents in the Union County deed and lien search.
Deeds and liens are recorded by the Union County Clerk & Recorder.
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Value complaints and appeals
Value appeals are heard by the Union County Board of Review.
We haven’t found Union County’s parcel maps online. The county’s website, unioncountyil.gov, lists its offices and how to reach them.
Links go to official county and state sites and were last checked in November 2026. Offices move their pages, so if one has changed, the county’s own website (unioncountyil.gov) is the place to start.