DuPage County Assessment

Search for DuPage County IL county assessment information. A county assessment search provides information on property assessments, residential assessment, commercial assessment, personal property assessment, property appraisals, property taxes, property maps, assessment reports, assessment forms, assessment exemptions, the assessment process, appealing assessments, property tax formulas, and unclaimed parcels.


DuPage County Assessors are responsible for determining the value of all property in their municipality, and they also keep records on the assessment process. Property appraisals of residential, commercial, and personal property are used to calculate DuPage County Illinois property taxes. At the DuPage County level, Assessors create reports on their property assessments, including searchable property maps, detailed assessment reports, forms related to assessments, and information about exemptions. They also provide information on the assessment process, calculating property taxes, and how property owners can appeal assessed values. Assessors maintain records on apartments, commercial buildings, condos, home improvements, property sales, residential buildings, and vacant lots in DuPage County IL. Their records also list the property owners, prior owners, and any sales or transfers.

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 maintain public records for their municipality, usually at the DuPage County or local level. As part of this process, Clerks keep records on DuPage County property assessments. This can include residential, commercial, and personal property assessments, which are used to calculate property taxes. Clerk records include DuPage County property assessments, property maps, assessment reports, assessment forms, and assessment listings. They may also provide information on the process used to assess properties, the formula for calculating property taxes, and the appeals process for an incorrect assessment. These records cover residential buildings, apartments, townhouses, condos, commercial buildings, and unclaimed parcels, including records on home improvements and property sales in DuPage County IL. Assessment records also include the current and former property owners and any property sales or transfers.

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