TN area data
Castalian spring, TN
Castalian spring, TN.
Population: 3,926 (Census ACS)
Home values & appreciation
- Median home value
- $429,323
- 1-year appreciation
- +3.8%
- 3-year appreciation
- +12.4%
- 5-year appreciation
- +35.0%
- 10-year appreciation
- +137.1%
- All-time peak (2026-05)
- $429,658
- House Price Index
- 475.9 (+0.5% YoY)
Market activity
- Median sale price
- $475,000
- Median list price
- $475,000
- Median days on market
- 104 days
- Sale-to-list ratio
- 97.8%
- Active listings
- 19
- 1-year forecast
- +0.5%
- New listings (monthly)
- 7
Rents
- 2-bedroom fair-market rent (HUD reference)
- $1,320/mo
- 3BR fair-market rent
- $1,670/mo
Affordability
- Cost of living index (Below Average)
- 90.5 (100 = US avg)
- Electricity rate (state-level)
- 13.2¢/kWh
- Natural gas rate (state-level)
- $11.80/MCF
- 30-year mortgage rate (national)
- 6.66%
- 15-year mortgage rate (national)
- 6.00%
Natural hazards & flood risk
- Overall hazard risk
- Relatively Moderate
- Top hazards
- coldWave, iceStorm, lightning, strongWind, tornado
- FEMA flood zone
- AE
- Flood risk level
- High
Climate (30-year normals)
- Average annual temperature
- 62.0°F
- Average high
- 71.0°F
- Average low
- 52.0°F
- Annual precipitation
- 60.2 in
- Annual snowfall
- 0.3 in
Air quality
- Air quality rating
- Good
- Median AQI (annual)
- 45
- Days with Good air quality
- 242
Walkability & transit
- Walkability index
- 6.8 / 20
- Transit service frequency
- -99,999
Amenities
- National parks within ~60 mi
- 2
- Nearest national park
- Stones River National Battlefield (35 mi)
- Nearest airport
- Music City Executive Airport (7 mi)
- Nearest major airport
- Nashville International Airport (BNA) (27 mi)
- Hospitals nearby (~15 mi)
- 7
- Avg hospital rating
- 3.0 / 5
- Solar radiation rating
- Fair (4.2 kWh/m²/day)
Migration
- Net migration
- +1,741 tax filers
Housing stock
- Median year housing built
- 1,997
- Median annual property tax
- $1,340
- Mean commute to work
- 26 min
- Households with broadband internet
- 63.9%
Employment & development
- Total county employment
- 52,987
- Average weekly wage
- $1,101
- Top industries (by employment)
- Health Care, Accommodation & Food, Construction
- Annual residential building permits (county)
- 1,610
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 →