Oak Brook, Illinois.
Typical home $993,234 (+9.2% in a year). Chicago-Naperville-Elgin, IL-IN-WI metro.
to buy the typical home at today's mortgage rate — +$2,855 (+121%) since Jan 2020.
- 1 year
- Up $83,862 +9%
- $909,373$993,234 since Sep 2025
- 5 years
- Up $276,081 +38%
- $717,153$993,234 since Sep 2021
Monthly payment to buy the typical home
Home value × that month's 30-year mortgage rate, 20% down, principal and interest. This is the line households feel: prices and rates compound each other.
- Oak Brook$5,213
- Illinois$1,553
- United States$1,922
At the last five years' pace, a typical home here doubles in price every 11 years.
Typical home values in Oak Brook, IL rose 9.2% over the past year — faster than the nation's +1.2%.
Living in Oak Brook, DuPage County, Illinois
Oak Brook is a village of 8,163 people in DuPage County. Half its households earn more than $175,870 a year and half less, against $112,096 across DuPage County; 7% of its people live below the poverty line. 91% of its homes are lived in by their owners and 9% are rented. Unemployment in DuPage County was 4.7% in August 2026, and the county had 1.2% more jobs in 2025 than the year before. The most residents work in schools and health care, then professional services.
Written by AI Claude Sonnet 5.5 wrote this on 23 October 2026 from the figures here, a list of nearby places and what it knows. It can be wrong or out of date.
What it’s like
The place. Oak Brook is a village in DuPage County where most homes are lived in by their owners, and the typical home is worth far more than in most of the country. Residents are older than in most American towns, incomes run well above the county's, and a large majority of adults hold a four-year degree. Winters are cold and summers warm, with rain and melted snow spread across the year.
Work. Residents work mainly in schools, hospitals and social care, in professional and business services, in manufacturing, and in banks, insurance and property. Among the largest workplaces in Oak Brook are Ace Hardware, Hub Group and Macy's. Commutes tend to be long, though a good number of people work from home.
Things to do. Among the closest outings are Brookfield Zoo and SeatGeek Stadium, each a short drive away. For a longer trip, the Art Institute of Chicago is one of the best known museums in the country, and the Field Museum of Natural History is another, both a longer drive away.
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- 3,061households
- 66%of adults have a degree
- 7%below the poverty line
- 32 mintypical commute
- 21%work from home
What residents work in
Employed residents by industry, from the Census survey. DuPage County had 629,392 jobs in 2025, 1.2% more than the year before (Bureau of Labor Statistics).
Weather through the year
Coldest in January, with highs near 32° and lows near 15°; warmest in July, with highs near 84° and lows near 62°. About 40 inches of rain and melted snow a year.
Average daily high and low, 1991–2020, at the Lisle-morton Arboretum weather station, 6 miles away (NOAA).
Largest workplaces in Oak Brook
- Medix Staffing SolutionsTemporary staffing services4,319
- Ace HardwareHardware except motor vehicle merchant wholesalers1,627
- FourGen HoldingsLow voltage electrical work817
- CNHOffice management services693
- Hub GroupSpecialized freight trucking, local668
- Macy'sDepartment stores364
- Commercial CenterDistribution of electric power341
- Premier Landscape ContractorsLandscape care and maintenance services324
Staff on average in 2025, as each workplace reported it to OSHA with its injury records: 42 workplaces with 20 or more staff, 12,299 people in all. Not listed: many offices and banks, which need not report to OSHA; military bases, whose staff OPM withholds; and, in about half the states, city and county governments.
Natural hazards
- TornadoesVery high
- Inland floodingVery high
- Cold wavesRelatively high
- Strong windRelatively moderate
- LightningRelatively moderate
- Winter weatherRelatively moderate
FEMA’s National Risk Index (December 2025) rates the risk each natural hazard poses to the people, buildings and farms in Oak Brook’s census tracts, against the rest of the country; all of them together, relatively high. It is meant for planning, not a substitute for a local risk assessment or a flood map: FEMA’s index.
From the U.S. Census Bureau’s 2020 census and its American Community Survey (2020–2024 five-year estimates), and the Bureau of Labor Statistics. A survey, so each figure has a margin of error, and figures it is not sure of are left out. More on DuPage County and the Chicago-Naperville-Elgin, IL-IN-WI metro.
Oak Brook home values
Zillow measures a city over its municipal boundary. Against the state and national figures, mid-tier homes, smoothed and seasonally adjusted.
- Oak Brook$993,234
- Illinois$295,943
- United States$366,157
Sellers are cutting prices on about 1 in 4 Oak Brook listings — the market is roughly in balance.
When this market ran hot
Each cell is that month's year-on-year home-value growth. Read left to right, top row is the latest year — the 2021–22 band is the boom.
Market heat, inside the city limits
Share of listings with a price cut
The early-warning dial: sellers cut when buyers stop reaching. Rising cuts cool a market months before prices notice.
- Oak Brook22.93%
- United States26.90%
Homes for sale
Active for-sale inventory. More supply hands power to buyers.
- Oak Brook52
New listings per month
Sellers arriving at the market.
- Oak Brook14
Zip codes with a Oak Brook address
A different geography, not a breakdown. The figure above covers the municipality; these zips cover everywhere the Post Office calls Oak Brook — often including townships beyond the city limits. Both come straight from Zillow, and they are not expected to average out.