Cook County, Illinois Property Owner Lookup
Who owns property in Cook County? Enter the street address below to see the owner of record and the tax-roll mailing address as the public roll lists it.
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AssessorBrief is a private company, not affiliated with any county or government office.
For a title file, a lender package or a client memo, a Cook County brief gives you the owner of record, tax-roll mailing address, site address, and assessed or market value (with Pro) in one place, cited to the Cook County parcel layer.
What's in a Cook County brief
Every field named above, plus the parcel ID, a map, the file date, and brief and exhibit PDFs. See a sample brief
Source and citation
Every Cook County brief cites the Cook County parcel layer. Illinois townships assess property and the county Supervisor of Assessments ties the roll together.
Cook County at a glance
Cook County is home to about 5,182,617 people, the most populous of Illinois's 102 counties, with 40.8% of the state's residents. Its 945 square miles of land work out to roughly 5,485 residents per square mile, 24.0 times the Illinois average. Another 690 square miles are water. The cited county layer lists 1,860,944 parcels.
Sources: Census Bureau population estimates (July 2024) and the Census 2024 Gazetteer.
Cook County questions
Who owns property in Cook County?
Enter the property's address above. You get the owner of record exactly as the Cook County parcel layer lists it.
Who keeps property records in Cook County?
In Cook County, the Supervisor of Assessments keeps the roll. AssessorBrief cites it through the Cook County parcel layer.
What counties are near Cook County?
The closest Illinois counties to Cook County are Lake County, DuPage County, Will County, Kane County, and Kendall County. Each lookup works the same way across the state line, too: Pro covers all states.
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Nearby counties
Data comes from the public assessor roll as published. Verify against the official record before relying on it. Not a title search or legal opinion. Use subject to our Terms.