Cass County property records
Where to look up owners, values, tax bills, parcel maps, deeds and value appeals in Cass 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 Cass County property search.
These records are kept by the Cass County Supervisor of Assessments.
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Tax bills and payments
Find the current bill, the balance due and past payments with the Cass County property tax lookup.
Property taxes are billed and collected by the Cass County Treasurer/Collector.
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Parcel maps
See parcel boundaries, parcel numbers and aerial imagery on the Cass County GIS parcel map.
Contact details and how-tos are on the Cass County GIS and mapping office page.
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Deeds, liens and recorded documents
Search deeds, mortgages, liens and other recorded documents in the Cass County deed and lien search.
Deeds and liens are recorded by the Cass County Clerk & Recorder.
We haven’t found Cass County’s value appeals online. The county’s website, co.cass.il.us, 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 (co.cass.il.us) is the place to start.