Dupage County, Illinois
Explore accurate parcel and ownership records,
directly sourced from county assessors.
Our database includes 5,174 properties in Oak Brook.
Properties in Oak Brook average $921,759, reflecting a competitive market.
The price per square foot of $335 reflects strong property valuations in this area.
Home prices in Oak Brook are 79% higher than the Dupage County average.
Showing 1951-2000 of 5,159 properties
The average home price in Oak Brook, IL is $921,759, based on analysis of 5,174 properties in our database.
Our database includes 5,174 properties in Oak Brook, IL, providing comprehensive market coverage.
The average price per square foot in Oak Brook, IL is $335. This is calculated from an average home price of $921,759 and average size of 2,748 square feet.
Homes in Oak Brook, IL average 2,748 square feet, with an average price of $921,759.
Oak Brook, IL is one of many cities in Dupage County, IL with property data available. Browse other cities in the county to compare market conditions and pricing.
Get instant access to comprehensive county assessors-based property data with your free API key
Need Bulk Data?
Email us at hello@realie.ai
© 2026 Realie, Inc. All rights reserved.
