Illinois · FIPS 17043 · County seat: Wheaton
DuPage County, IL GIS & Parcel Viewer
DuPage County, Illinois parcel data lives on the DuPage County parcel map. Open it below in a new tab, then use the short steps on this page to find a property fast.
Open the DuPage County parcel map ↗
Opens gis.dupageco.org in a new tab. We link out and never embed or copy parcel data.
Quick facts
| Official map | DuPage County parcel map |
|---|---|
| Type | County-run map |
| Website | gis.dupageco.org |
| Access | Free, no login (checked Oct 2026) |
| County seat | Wheaton |
| Population | 921,213 (2023 Census Bureau estimate) |
| Land area | 328 sq mi |
| FIPS code | 17043 |
Who runs this map
This map is published by or for DuPage County itself, so it reflects the local parcel layer rather than a third-party copy. When we tested the link in October 2026 it opened with no login and no fee.
Searching for a parcel, step by step
- Press the button above to open the county's own web map.
- Search for the property or pan and zoom to it.
- Click the lot to bring up what the county publishes about it.
- Look for print or measure tools if you need a quick map or rough size.
Have a tax bill handy? The parcel or account number on it is usually the fastest way to search.
About DuPage County
Census Bureau figures put DuPage County at about 921,213 people (2023 estimate) on roughly 328 square miles of land, which is about 2,809 residents per square mile. Among Illinois's 102 counties, it is the 2nd largest by population. The county seat is Wheaton.
Neighboring counties
If the property sits near a county line, the parcel may belong to a neighbor. These counties border DuPage County:
More on DuPage County parcel maps
Maps vs. surveys
Online parcel lines are drawn for tax and planning use. They can be off by several feet, so use a recorded plat or a licensed surveyor for fences, setbacks or a sale.