Search Property Records in Rock Island County

This page helps with a property search in Rock Island County, Illinois by pointing you to official tools for tax, assessment, parcel, sales, GIS, and land record information.

For most users, the Rock Island County Property Tax Inquiry is the main place to start when searching by parcel number, owner name, address, sales details, or mobile home number.

Rock Island County Property Tax Inquiry

The Rock Island County Property Tax Inquiry lets users search tax records by several property identifiers. The system notes that the best search method is entering the parcel number as it appears on the tax bill.

• PIN number, with or without dashes
• Owner name
• House number, street name, street type, and city
• Sale price range or sale date range
• Township, tax district, property class, and tax year range
• Mobile home number, owner name, or site address

Use the search option that matches the information you already have.

• Choose Parcel Search, Advanced Parcel Search, or Mobile Home Search.
• Enter at least one search field.
• Use Clear Form if the search criteria need to be reset.
• Submit the search and review the matching property records.

Tip: The inquiry system shows a data update timestamp, so review the listed update date when comparing online results with a bill or office record.

Assessment search and property characteristics

The county’s online assessment search provides public access to assessment information for inquiry and review. Users must agree to the county disclaimer before proceeding.

Assessment records are public information under Illinois law, but the county states that the data is part of a working file that is updated regularly. The assessment search is intended for individual use, not automated retrieval.

For building details such as square footage, year built, lot size, sale information, or a property record card, the county directs users to the township assessor’s office. The Township Assessors page lists local assessor contacts by township.

GIS parcel map

The Rock Island County GIS public mapping app can help users view parcel boundaries and related map layers. The GIS app is for general reference and is not survey grade.

The GIS Department maintains parcel data, tax parcel maps, internet mapping applications, and other map layers used by county departments. Commonly requested map information includes parcel ownership, zoning, floodplain data, school districts, fire protection districts, voter precincts, and parcel overlays with aerial photography.

Sales history reports

The county’s sales history reports are grouped by year and property class, including residential, commercial or industrial, and farm sales.

Assessment work uses sales ratio studies based on the previous three years of sales. The reports include all sales, while arm’s length sales used in assessment studies are marked in the report column for inclusion in the sales study.

Property tax records and delinquent taxes

The county provides an online property tax records search for public inquiry and review. Users must agree to the disclaimer before entering the tax records search.

For unpaid taxes, the county also provides a delinquent property tax records search. Both tax search pages state that the records are public information under Illinois law and are not intended for automated data retrieval.

Land records and recorded documents

The Recorder’s Office is the official land records office for Rock Island County. It records documents connected to property ownership and real estate transactions, including deeds, mortgages, releases, assignments, property liens, subdivision plats, land surveys, and monument records.

Use the Recorder’s Office page when the property search involves recorded ownership documents rather than assessment or tax data.

Property tax relief and assessment questions

The Assessment Office provides information about property tax relief programs under Illinois law. These programs may reduce or defer increases in equalized value, and eligibility depends on the specific exemption.

The property tax relief page includes exemption forms for homeowners, seniors, disabled persons, disabled veterans, returning veterans, charitable property, religious property, hospital property, open space, model homes, and natural disaster homestead relief.

If a property value or assessment appears incorrect, the county recommends starting with the township assessor. If no adjustment is made there, the next step is an assessment appeal with the Rock Island County Board of Review.

Rock Island County property search contacts

Use these contacts when an online result is unclear, when a property record card is needed, or when the question belongs to a specific county office.

• Assessment Office, 1504 Third Avenue, County Office Bldg, 2nd Floor, Rock Island, IL 61201
  Phone: (309) 558-3660
  Fax: (309) 558-3658
  Hours: Monday through Friday, 8 am to 4:30 pm
• Treasurer’s Office, 1504 Third Avenue, 1st Floor, Rock Island, IL 61201
  Phone: (309) 558-3510
  Fax: (309) 558-3511
  Hours: Monday through Friday, 8 am to 4:30 pm
• Recorder’s Office, 1504 3rd Avenue, 2nd Floor, Rock Island, IL 61201
  Phone: (309) 558-3360
  Fax: (309) 558-3642
  Hours: Monday through Friday, 8 am to 4:30 pm
• GIS Department, 1504 Third Avenue, Third Floor, Rock Island, IL 61201
  Phone: (309) 558-3772
  Fax: (309) 786-4456