CT area data
Cos cob, CT
Cos cob, CT.
Population: 7,650 (Census ACS)
Home values & appreciation
- Median home value
- $1.88M
- 1-year appreciation
- +14.2%
- 3-year appreciation
- +27.2%
- 5-year appreciation
- +48.6%
- 10-year appreciation
- +65.9%
- All-time peak (2026-07)
- $1.88M
- House Price Index
- 307.7 (+3.7% YoY)
Market activity
- Median sale price
- $1.89M
- Median list price
- $2.20M
- Median days on market
- 20 days
- Sale-to-list ratio
- 104.9%
- Active listings
- 3
- 1-year forecast
- +4.0%
- New listings (monthly)
- 9
Rents
- Typical rent
- $7,396/mo
- 1BR fair-market rent
- $1,508/mo
- 3BR fair-market rent
- $2,441/mo
Affordability
- Cost of living index (Above Average)
- 107.0 (100 = US avg)
- Electricity rate (state-level)
- 29.4¢/kWh
- Natural gas rate (state-level)
- $16.80/MCF
- 30-year mortgage rate (national)
- 6.66%
- 15-year mortgage rate (national)
- 6.00%
Schools
- Total schools
- 1
- Elementary schools
- 1
- Middle schools
- 0
- High schools
- 0
Natural hazards & flood risk
- FEMA flood zone
- AE
- Flood risk level
- High
Climate (30-year normals)
- Annual precipitation
- 50.8 in
Air quality
- Air quality rating
- Good
- Median AQI (annual)
- 46
- Days with Good air quality
- 210
- Days with Unhealthy air quality
- 7
Walkability & transit
- Walkability index
- 6.5 / 20
- Transit service frequency
- -99,999
Amenities
- National parks within ~60 mi
- 23
- Nearest national park
- Sagamore Hill National Historic Site (13 mi)
- Nearest airport
- Westchester County Airport (HPN) (6 mi)
- Nearest major airport
- Westchester County Airport (HPN) (6 mi)
- Hospitals nearby (~15 mi)
- 25
- Avg hospital rating
- 3.0 / 5
- EV charging stations (within 10 mi)
- 171
- Solar radiation rating
- Fair (4.0 kWh/m²/day)
Housing stock
- Median year housing built
- 1,964
- Median annual property tax
- $8,652
- Mean commute to work
- 21 min
- Households with broadband internet
- 92.5%
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 →