Rock Island County, Illinois Property Owner Lookup
Who owns property in Rock Island 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 Rock Island 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 Rock Island County parcel layer.
What's in a Rock Island 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 Rock Island County brief cites the Rock Island County parcel layer. Illinois townships assess property and the county Supervisor of Assessments ties the roll together.
Rock Island County at a glance
Rock Island County is home to about 142,731 people, the 15th most populous of Illinois's 102 counties, with 1.1% of the state's residents. Its 427 square miles of land work out to roughly 334 residents per square mile, 1.5 times the Illinois average. Another 24 square miles are water. The cited county layer lists 65,806 parcels.
Sources: Census Bureau population estimates (July 2024) and the Census 2024 Gazetteer.
Rock Island County questions
Who owns property in Rock Island County?
Enter the property's address above. You get the owner of record exactly as the Rock Island County parcel layer lists it.
Who keeps property records in Rock Island County?
In Rock Island County, the Supervisor of Assessments keeps the roll. AssessorBrief cites it through the Rock Island County parcel layer.
What counties are near Rock Island County?
The closest Illinois counties to Rock Island County are Mercer County, Henry County, Whiteside County, Knox County, and Warren County. Each lookup works the same way across the state line, too: Pro covers all states.
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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.