Winnebago County Property Search (Illinois)

The Winnebago County Assessor is responsible for determining the value of property in order to determine Winnebago County property taxes. The Winnebago County Assessment Office collect data from on-site inspections, value assessments for construction or improvements, comparable sales, and calculations of depreciation. The Winnebago County Tax Assessor maintains current data on every parcel in the Winnebago County, which includes ownership information, maps of property lines, inventories of parcels and structures, and the value of all the property in the Winnebago County, IL. The Winnebago County Assessor’s Office can answer questions regarding Winnebago County property tax appeals and assessments, Winnebago County property tax rates and payment due dates.

Cherry Valley Township Assessor Rockford IL 4875 Blackhawk Road 61109 815-874-2119

Rockford Township Assessor Rockford IL 401 West State Street, Ste 100 61101 815-965-0300

Rockton Township Assessor Rockton IL 1315 North Blackhawk Boulevard 61072 815-624-2597

Winnebago County Assessor's Office Rockford IL 404 Elm Street 61101 815-319-4460


The Winnebago County Clerk files important documents and preserves municipal records in order to maintain an archive of Winnebago County property records that can be accessed by the public. The Clerk's Office is a valuable source of information on property in Winnebago County, Illinois. The Winnebago County Clerk's Office contains documentation on real estate excise taxes, registered land, and property transactions, as well as land documents including Winnebago County deeds, mortgages, and liens on properties.

Cherry Valley Village Clerk Cherry Valley IL 806 East State Street, Ste A 61016 815-332-3441

Loves Park City Clerk Loves Park IL 100 Heart Boulevard 61111 815-654-5034

Pecatonica City Clerk Pecatonica IL 111 West 3rd Street 61063 815-239-2310

Rockford Township Town Clerk Rockford IL 119 North Church Street, Ste 400 61101 815-962-8855

Roscoe Village Clerk Roscoe IL 10595 Main Street 61073 815-623-2829

Winnebago County Clerk Rockford IL 404 Elm Street 61101 815-319-4250

Winnebago County Town Halls and City Hall are the chief administrative offices that runs the town or city. The Town Hall or City Hall often maintains records related to the locality, including Winnebago County property taxes, property value assessments, and land transactions, as well as property sales and transfers in Winnebago County, Illinois.

Durand City Hall Durand IL 308 W Main St 61024 815-248-2606

Loves Park City Hall Loves Park IL 100 Heart Boulevard 61111 815-654-5034

Rockford City Hall Rockford IL 425 East State Street 61104 815-987-5546

South Beloit City Hall South Beloit IL 519 Blackhawk Boulevard, Ste 2 61080 815-389-3023


The Winnebago County Treasurer and Tax Collector’s Office is responsible for the collection of Winnebago County property tax revenue. The Treasurer and Tax Collector maintains current Winnebago County property tax information including Winnebago County property ownership information, GIS Maps, tax maps, historical property tax rates, lists of sold parcels, and is also charged with the sale of properties due to a default on taxes in Winnebago County, Illinois.

Loves Park Treasurer Loves Park IL 100 Heart Boulevard 61111 815-654-5027

Winnebago County Treasurer's Office Rockford IL 404 Elm Street 61101 815-987-3020