IL area data
Marengo, IL
Marengo, IL.
Population: 12,417 (Census ACS)
Home values & appreciation
- Median home value
- $363,530
- 1-year appreciation
- +6.1%
- 3-year appreciation
- +21.2%
- 5-year appreciation
- +44.5%
- 10-year appreciation
- +92.2%
- All-time peak (2026-07)
- $363,530
- House Price Index
- 325.3 (+6.1% YoY)
Market activity
- Median sale price
- $359,450
- Median list price
- $379,900
- Median days on market
- 47 days
- Sale-to-list ratio
- 100.2%
- Active listings
- 28
- 1-year forecast
- +2.0%
- Days to pending
- 43 days
- New listings (monthly)
- 17
Rents
- 2-bedroom fair-market rent (HUD reference)
- $1,320/mo
- 3BR fair-market rent
- $1,700/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
- 5
- Elementary schools
- 3
- Middle schools
- 1
- High schools
- 1
Natural hazards & flood risk
- Overall hazard risk
- Relatively Moderate
- Top hazards
- coldWave, strongWind, tornado, hail, inlandFlooding
- FEMA flood zone
- AE
- Flood risk level
- High
Climate (30-year normals)
- Average annual temperature
- 52.0°F
- Average high
- 60.0°F
- Average low
- 43.0°F
- Annual precipitation
- 34.3 in
- Annual snowfall
- 30.5 in
Air quality
- Air quality rating
- Good
- Median AQI (annual)
- 49
- Days with Good air quality
- 191
- Days with Unhealthy air quality
- 4
Walkability & transit
- Walkability index
- 8.8 / 20
- Transit service frequency
- -99,999
Amenities
- Nearest airport
- Walpole Airport (2 mi)
- Nearest major airport
- Chicago Rockford International Airport (RFD) (24 mi)
- Hospitals nearby (~15 mi)
- 6
- Avg hospital rating
- 4.0 / 5
- Solar radiation rating
- Fair (3.9 kWh/m²/day)
Migration
- Net migration
- +54 tax filers
Housing stock
- Median year housing built
- 1,979
- Median annual property tax
- $6,365
- Mean commute to work
- 29 min
- Households with broadband internet
- 61.9%
Employment & development
- Total county employment
- 82,414
- Average weekly wage
- $1,024
- Top industries (by employment)
- Health Care, Accommodation & Food, Construction
- Annual residential building permits (county)
- 858
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 →