DuPage County Property Assessor (Illinois)

Search for DuPage County, IL property assessment information. Property Assessments include property tax assessments, property valuations, property tax liens, defaults on property taxes, and property assessment appeals.


DuPage County Assessors determine the value of properties and parcels so that the jurisdiction can levy Illinois property taxes. The Assessor's Office maintains current data on every parcel in the district, including records on DuPage County property tax assessments, maps of property lines, and inventories of parcels and structures, as well as the value of all the property in the jurisdiction. DuPage County Tax Assessors may also keep records on reassessments for construction or improvements and other on-site inspections. DuPage County Assessment Offices provide online access to their property assessment records.

Addison Township Assessor Addison IL 401 North Addison Road 60101 630-530-8161

Downers Grove Assessor Downers Grove IL 4340 Prince Street 60515 630-968-2100

Dupage County Assessor's Office Wheaton IL 421 North County Farm Road 60187 630-682-7024

Lisle Township Assessor Lisle IL 4711 Indiana Avenue 60532 630-968-1183

Milton Township Assessor Wheaton IL 1492 North Main Street 60187 630-653-5220

Naperville Township Assessor Naperville IL 139 Water Street 60540 630-355-2444


DuPage County Clerks file documents and preserve a range of municipal records in order to maintain an archive for their Illinois municipality. These DuPage County tax assessment records are open to the public. The Clerk's Office has a number of records on property assessments, including real estate excise taxes, tax liens on properties, and the DuPage County property tax assessment formulas. They also keep records on property transactions, deeds, and titles. DuPage County Clerks provide online access to their public property tax records, including documents related to property assessments.

Bensenville Village Clerk Bensenville IL 12 South Center Street 60106 630-766-8200

Bloomingdale Town Clerk Bloomingdale IL 123 Rosedale Avenue 60108 630-529-7715

Dupage County Clerk Wheaton IL 421 North County Farm Road 60187 630-407-5500

Naperville Town Clerk Naperville IL 139 Water Street 60540 630-355-1558

Oak Brook Village Hall Clerk Oak Brook IL 1200 Oak Brook Road 60523 630-368-5000

Westmont Village Clerk Westmont IL 31 West Quincy Street 60559 630-829-4400


DuPage County Recorders of Deeds collect public records, primarily documents related to property, and make them available to the Illinois public. The Office of the Recorder of Deeds maintains records on DuPage County property tax assessments, including property and parcel surveys, property tax liens, and property valuations. They also record land transactions within the jurisdiction, including deeds, mortgages, and easements. The DuPage County Recorder provides online databases for public records access of property assessments.

DuPage County Recorder Wheaton IL 421 North County Farm Road 60187 630-407-5400


DuPage County Town Halls and City Halls are the chief administrative office that runs a town or city in Illinois. The Town or City Hall maintains records related to the locality, including property assessment records. These DuPage County public assessment records include property value assessments, records of paid and unpaid property taxes, and property tax liens. Town and City Halls also maintain records on land transactions, property sales and transfers, and municipal and zoning boundaries. Property assessment records are available as public records, and many Town and City Halls provide online access to these files.

Darien City Hall Darien IL 1702 Plainfield Road 60561 630-852-5000

Elmhurst City Hall Elmhurst IL 209 North York Street 60126 630-530-3000

Naperville City Hall Naperville IL 400 South Eagle Street 60540 630-420-6111

Warrenville City Hall Warrenville IL 3S258 Manning Ave 60555 630-393-9427

West Chicago City Hall West Chicago IL 475 Main St 60185 630-293-2200

Wheaton City Hall Wheaton IL 303 West Wesley Street 60187 630-260-2000

Wood Dale City Hall Wood Dale IL Frnt 1, 404 N Wood Dale Rd 60191 630-766-4900


DuPage County Treasurers and Tax Collectors are responsible for the collection of property tax revenue in Illinois. The Office of the Treasurer and Tax Collector maintains current data on every DuPage County parcel , as well as a number of other property tax assessment records. These records include property assessments, defaults on property taxes, lists of sold parcels, and property valuations. The Treasurer and Tax Collector may also maintain information on DuPage County property auctions and a property's prior liens or foreclosures. DuPage County Treasurers and Tax Collectors provide online databases to access property assessment records.

Dupage County Treasurer's Office Wheaton IL 421 North County Farm Road 60187 630-407-5998