IL area data
Lake forest, IL
Lake forest, IL.
Population: 21,074 (Census ACS)
Home values & appreciation
- Median home value
- $1.22M
- 1-year appreciation
- +9.9%
- 3-year appreciation
- +24.6%
- 5-year appreciation
- +46.2%
- 10-year appreciation
- +45.1%
- All-time peak (2026-07)
- $1.22M
- House Price Index
- 325.3 (+6.1% YoY)
Market activity
- Median sale price
- $1.34M
- Median list price
- $1.45M
- Median days on market
- 49 days
- Sale-to-list ratio
- 100.5%
- Active listings
- 69
- 1-year forecast
- +2.7%
- Days to pending
- 23 days
- New listings (monthly)
- 33
Rents
- Typical rent
- $4,038/mo
- 1BR fair-market rent
- $2,370/mo
- 3BR fair-market rent
- $3,440/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
- 7
- Elementary schools
- 4
- Middle schools
- 2
- High schools
- 1
Natural hazards & flood risk
- Overall hazard risk
- Relatively High
- Top hazards
- coldWave, strongWind, tornado, inlandFlooding, lightning
- FEMA flood zone
- X
- Flood risk level
- Minimal
Climate (30-year normals)
- Average annual temperature
- 51.0°F
- Average high
- 57.0°F
- Average low
- 45.0°F
- Annual precipitation
- 40.2 in
- Annual snowfall
- 26.3 in
Air quality
- Air quality rating
- Good
- Median AQI (annual)
- 42
- Days with Good air quality
- 182
- Days with Unhealthy air quality
- 1
Walkability & transit
- Walkability index
- 5.3 / 20
- Transit service frequency
- -99,999
Amenities
- National parks within ~60 mi
- 2
- Nearest national park
- Pullman National Historical Park (40 mi)
- Nearest airport
- Chicago Executive Airport (PWK) (9 mi)
- Nearest major airport
- Chicago Executive Airport (PWK) (9 mi)
- Hospitals nearby (~15 mi)
- 1
- Avg hospital rating
- 5.0 / 5
- EV charging stations (within 10 mi)
- 130
- Solar radiation rating
- Fair (3.9 kWh/m²/day)
Migration
- Net migration
- -2,667 tax filers
Housing stock
- Median year housing built
- 1,977
- Median annual property tax
- $10,001
- Mean commute to work
- 22 min
- Households with broadband internet
- 89.0%
Employment & development
- Total county employment
- 289,339
- Average weekly wage
- $1,795
- Top industries (by employment)
- Health Care, Administrative Services, Accommodation & Food
- Annual residential building permits (county)
- 432
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 →