IL area data
Oak brook, IL
Oak brook, IL.
Population: 18,056 (Census ACS)
Home values & appreciation
- Median home value
- $1.25M
- 1-year appreciation
- +8.9%
- 3-year appreciation
- +25.7%
- 5-year appreciation
- +37.2%
- 10-year appreciation
- +39.1%
- All-time peak (2026-07)
- $1.25M
- House Price Index
- 325.3 (+6.1% YoY)
Market activity
- Median sale price
- $1.41M
- Median list price
- $1.65M
- Median days on market
- 52 days
- Sale-to-list ratio
- 98.4%
- Active listings
- 76
- 1-year forecast
- +2.4%
- Days to pending
- 54 days
- New listings (monthly)
- 26
Rents
- Typical rent
- $3,808/mo
- 1BR fair-market rent
- $2,170/mo
- 3BR fair-market rent
- $3,160/mo
Affordability
- Cost of living index (Average)
- 97.3 (100 = US avg)
- Electricity rate (state-level)
- 17.7¢/kWh
- Natural gas rate (state-level)
- $11.30/MCF
- 30-year mortgage rate (national)
- 6.66%
- 15-year mortgage rate (national)
- 6.00%
Schools
- Total schools
- 6
- Elementary schools
- 4
- Middle schools
- 1
- High schools
- 1
Natural hazards & flood risk
- Overall hazard risk
- Relatively High
- Top hazards
- coldWave, strongWind, tornado, inlandFlooding, lightning
- FEMA flood zone
- AE
- Flood risk level
- High
Climate (30-year normals)
- Average annual temperature
- 53.0°F
- Average high
- 61.0°F
- Average low
- 44.0°F
- Annual precipitation
- 47.6 in
- Annual snowfall
- 21.0 in
Air quality
- Air quality rating
- Moderate
- Median AQI (annual)
- 53
- Days with Good air quality
- 146
- Days with Unhealthy air quality
- 4
Walkability & transit
- Walkability index
- 9.8 / 20
- Transit service frequency
- -99,999
Amenities
- National parks within ~60 mi
- 2
- Nearest national park
- Pullman National Historical Park (18 mi)
- Nearest airport
- Brookeridge Air Park (6 mi)
- Nearest major airport
- Chicago Midway International Airport (MDW) (9 mi)
- Hospitals nearby (~15 mi)
- 1
- Avg hospital rating
- 4.0 / 5
- EV charging stations (within 10 mi)
- 150
- Solar radiation rating
- Fair (3.9 kWh/m²/day)
Migration
- Net migration
- -3,532 tax filers
Housing stock
- Median year housing built
- 1,981
- Median annual property tax
- $10,001
- Mean commute to work
- 21 min
- Households with broadband internet
- 88.6%
Employment & development
- Total county employment
- 572,803
- Average weekly wage
- $1,507
- Top industries (by employment)
- Health Care, Professional Services, Administrative Services
- Annual residential building permits (county)
- 784
Area data compiled from public government, academic, and industry research feeds. Data sources →
Data last updated
Most recent source refresh: Aug 2026. See all data sources →