This page helps users handle a Property Search in DuPage County, Illinois by explaining the main county lookup options, parcel tools, tax bill access, and where to contact the county for help.

The DuPage County Property Records Search and the Property Lookup Portal let users search by parcel number, address, billing name, map, and related property record options.

The main public search tool is the DuPage County Property Records Search. It provides access to the county property records database and supports several search paths.

  • Parcel Number, also called PIN
  • Street address
  • Billing name
  • Map search option

For a tax bill, start with the parcel number or address search and follow the property record to the bill option.

  • Select Parcel Number (PIN) Search or Address Search.
  • Enter the required search information.
  • Select Search.
  • Choose the PIN from the results.
  • Select Property Tax Bill in the right-hand column.
  • Select Go to open the bill.

Popup blockers can prevent the tax bill PDF from opening. Disable the blocker if the PDF does not appear.

Property Lookup Portal

The Property Lookup Portal connects users to parcel tax bill information, current-year tax payment options, duplicate tax bill printing, tax distribution details, and assessment information.

Parcels can be searched by PIN or address. Assessment information may include reviews or corrections made to assessments. Property characteristics and assessment data are published by the Township Assessors on their assessor websites.

If the portal does not work correctly, clear your browser cache first. Internet Explorer users should uncheck “Preserve Favorites website data” when clearing cache for the county website.

Parcel Viewer and GIS maps

The DuPage County Parcel Viewer is the county’s web mapping application for parcel and land records information. It is managed through the DuPage County Information Technology Department, GIS Division.

The Parcel Viewer includes map layers such as parcel numbers, address points, subdivisions, municipal boundaries, zoning data, contour elevations, wetlands, soils, road centerlines, and imagery layers.

Ownership and tax information in the Parcel Viewer may not be current during county tax system update changes. Verify important details with the appropriate county office.

Assessment and tax roles

The Supervisor of Assessments provides assessment data support, technical advice, and statistical analysis for township assessors and the DuPage County Board of Review. The office also administers special assessment types and maintains records of total exempt properties.

The nine Township Assessors in DuPage County are responsible for the initial assessed valuation calculation and provide online databases of property information on their respective websites.

The DuPage County Treasurer handles property tax billing and payments. The Treasurer states that the office does not determine property values, so questions about assessed value should go to the local assessor listed on the tax bill.

Property tax bills and online payments

The DuPage County Treasurer states that 2025 property tax bills were mailed on April 29 and are available online. In Illinois, property taxes are billed and collected in arrears, so 2025 taxes are billed and collected in 2026.

The county issues one tax bill for the collection season with both installment payment coupons. The 2026 due dates for the 2025 tax year are June 1, 2026, and September 1, 2026.

To pay online, search by parcel number or address. If taxes are unpaid, a “Pay Now” button appears. The Treasurer encourages property owners to confirm whether a mortgage company is already paying the taxes before submitting a separate payment.

Electronic tax bills and mailing changes

Property owners may register to receive tax bills electronically through the Electronic Tax Bill Registration page. The registration form asks for contact details, mailing address, property address, and parcel number information.

The Treasurer also provides a property mailing change form for a change of name or mailing address for DuPage property tax bills. The form requires the Property Index Number, name, email, phone, mailing address, and certification by the owner or authorized person.

Contact information for DuPage County property help

Use the contact that matches the property question: assessment records, tax bills, GIS parcel maps, or general county assistance.

  • Supervisor of Assessments, 421 N. County Farm Road, Room 1-100, Wheaton, IL 60187
    Phone: (630) 407-5858
  • DuPage County Treasurer, 421 N. County Farm Road, Room 1-200, Wheaton, IL 60187
    Phone: (630) 407-5900
    Email: propertytaxadvocate@dupagecounty.gov
  • Geographic Information Systems
    Phone: (630) 407-5062
    Email: GIS@dupagecounty.gov
  • DuPage County, 421 N. County Farm Road, Wheaton, IL 60187
    Phone: (630) 407-6500
    General hours: 8 a.m. - 4:30 p.m. Monday - Friday

Common questions

How do I search DuPage County property records?

Use the DuPage County Property Records Search to search by PIN, street address, billing name, or map search option. The Property Lookup Portal also supports parcel searches by PIN or address.

How do I print a DuPage County property tax bill?

Search by PIN or address, select the matching PIN, choose Property Tax Bill in the right-hand column, and select Go. Disable your popup blocker if the PDF does not open.

Which office handles assessed value questions?

Questions about assessed value should go to the local assessor listed on the tax bill. The DuPage County Treasurer handles tax billing and payments but does not determine property values.

Where can I view DuPage County parcel maps?

Use the DuPage County Parcel Viewer for parcel and land records mapping. It includes parcel, address, subdivision, zoning, imagery, and other GIS layers.

What should I do if the property lookup page is not working?

Clear your browser cache first. If the issue continues, use the county contact form and include a description of the issue and the browser you are using.

Can I receive my DuPage County property tax bill by email?

Yes. Property owners can complete the Electronic Tax Bill Registration form. The authorization remains in effect until a name or email address change is submitted or ownership changes.