IL area data
Troy, IL
Troy, IL.
Population: 15,325 (Census ACS)
Home values & appreciation
- Median home value
- $334,671
- 1-year appreciation
- +4.9%
- 3-year appreciation
- +16.4%
- 5-year appreciation
- +31.6%
- 10-year appreciation
- +76.2%
- All-time peak (2026-07)
- $334,671
- House Price Index
- 325.3 (+6.1% YoY)
Market activity
- Median sale price
- $173,000
- Median days on market
- 17 days
- Sale-to-list ratio
- 98.9%
- 1-year forecast
- +1.8%
- New listings (monthly)
- 18
Rents
- Typical rent
- $1,317/mo
- 1BR fair-market rent
- $960/mo
- 3BR fair-market rent
- $1,520/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
- 4
- Elementary schools
- 2
- Middle schools
- 0
- High schools
- 2
Natural hazards & flood risk
- Overall hazard risk
- Relatively Moderate
- Top hazards
- coldWave, hail, heatWave, lightning, tornado
- FEMA flood zone
- C
- Flood risk level
- Minimal
Climate (30-year normals)
- Annual precipitation
- 45.8 in
Air quality
- Air quality rating
- Moderate
- Median AQI (annual)
- 55
- Days with Good air quality
- 113
- Days with Unhealthy air quality
- 2
Walkability & transit
- Walkability index
- 9.7 / 20
- Transit service frequency
- -99,999
Amenities
- National parks within ~60 mi
- 3
- Nearest national park
- Gateway Arch National Park (18 mi)
- Nearest airport
- St Louis Metro-East Airport/Shafer Field (4 mi)
- Nearest major airport
- Scott AFB/Midamerica Airport (BLV) (11 mi)
- Hospitals nearby (~15 mi)
- 10
- Avg hospital rating
- 3.0 / 5
- Solar radiation rating
- Fair (4.2 kWh/m²/day)
Migration
- Net migration
- -118 tax filers
Housing stock
- Median year housing built
- 1,992
- Median annual property tax
- $5,612
- Mean commute to work
- 22 min
- Households with broadband internet
- 81.1%
Employment & development
- Total county employment
- 89,215
- Average weekly wage
- $1,059
- Top industries (by employment)
- Health Care, Accommodation & Food, Construction
- Annual residential building permits (county)
- 314
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 →