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Oak Brook, IL
Village in DuPage County, Illinois. ZIP codes: 60523.
Population
8,056
Land area
8sq mi
People per sq mi
1,010
ZIP codes
1
Oak Brook and its ZIP codes
Oak Brook at a glance
- Oak Brook is about 4.4 times as dense as Illinois as a whole.
- It is the 262nd most populous of 1,445 cities and towns in Illinois.
- Households here earn a median of $175,870 a year, about 2.1 times the Illinois figure of $83,390.
- A typical owner-occupied home is valued at $903,200 (about 3.4 times the Illinois figure) and median rent is $2,590 a month.
Local data for Oak Brook, IL
Counts from official public data
Housing and community stats
Oak Brook, IL, American Community Survey 2020-2024
Median household income
$175,870
Poverty rate
6.6%
Median home value
$903,200
Median rent
$2,590/mo
Homeownership
91.1%
Bachelor's or higher
66.4%
Median age
55.2
Average commute
31.5 min
Largest reported origins and ancestries: Indian Americans (1,401), Irish Americans (992), Italian Americans (818).
Economy and federal money
Jobs, pay, income and spending are for DuPage County. PPP loans are for Oak Brook.
Unemployment rate
4.7%
Aug 2026, +0.9 pts in a year
Average annual pay
$81,891
629,392 jobs, 2025
Income per person
$98,481
BEA, 2024
Federal spending
$8.6B
FY 2026, $9,224 per person
PPP loans
$270M
1,387 loans, 21,297 jobs reported
How people get to work
Oak Brook, IL, workers 16 and older. American Community Survey 5-year estimates
- Drove alone69.8%
- Carpooled5.2%
- Public transit2.5%
- Walked1.6%
- Bicycle0.0%
- Taxi, ride-hailing, motorcycle or other0.0%
- Worked from home20.9%
Average one-way commute: 31.5 minutes for people who do not work from home.
Environment and hazard risk
Oak Brook, IL, from FEMA, NOAA and EPA
Natural hazard risk
Relatively High
Top: cold wave
Storm events since 1996
1,204
Countywide, mostly thunderstorm wind
Flood insurance policies
1,772
0.6% of homes, county
July high / Jan low
84° / 15°F
40.2 inches of rain a year
Hazards, floods and storm historyCheck a flood zone2 historic places
Health statistics
Share of adults in Oak Brook, IL, CDC PLACES estimates
Obesity
25.0%
U.S. 33.3% -8.3 pts
Diabetes
13.7%
U.S. 12.1% +1.6 pts
Smoking
7.6%
U.S. 12.8% -5.2 pts
Uninsured (18-64)
4.9%
U.S. 11.1% -6.2 pts
ZIP codes in Oak Brook
1 in or overlapping Oak Brook. Population shown
Cities near Oak Brook
| Name | Distance | Land area (sq mi) |
|---|---|---|
| Oakbrook TerraceCity | 1.6 mi | 1.3 |
| Clarendon HillsVillage | 2.8 mi | 1.8 |
| HinsdaleVillage | 2.9 mi | 4.6 |
| HillsideVillage | 3.2 mi | 3.2 |
| WestchesterVillage | 3.4 mi | 3.7 |
| WestmontVillage | 3.4 mi | 5 |
| La Grange ParkVillage | 3.6 mi | 2.2 |
| Western SpringsVillage | 3.6 mi | 2.8 |
| Villa ParkVillage | 3.9 mi | 4.7 |
| ElmhurstCity | 4 mi | 10.2 |
| BerkeleyVillage | 4.1 mi | 1.4 |
| LombardVillage | 4.2 mi | 10.2 |
| La GrangeVillage | 4.3 mi | 2.5 |
| Downers GroveVillage | 4.9 mi | 14.7 |
| BroadviewVillage | 4.9 mi | 1.8 |
| BellwoodVillage | 5 mi | 2.4 |
Frequently asked questions
- What county is Oak Brook, IL in?
- Oak Brook is in DuPage County, Illinois.
- What ZIP codes are in Oak Brook, IL?
- ZIP codes in or overlapping Oak Brook include 60523.
- What is the population of Oak Brook, IL?
- About 8,056 people live in Oak Brook, based on American Community Survey 5-year estimates.
- What cities are near Oak Brook?
- Nearby places include Oakbrook Terrace (1.6 mi), Clarendon Hills (2.8 mi), Hinsdale (2.9 mi), Hillside (3.2 mi), Westchester (3.4 mi).
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023