Area data
Cos cob, CT — ZIP 06807
Population: 7,650 (Census ACS)
The median home value in ZIP 06807 (Cos cob, CT) is $1.88M — up 14.2% over the past year. Homes sell for a median $1.89M after a median 20 days on market. Typical rent runs $7,396/month. 1 schools serve the area (NCES). Cost of living is 7.0% above the US average (BEA, metro/state-level).
$1.88M
Median home value
+14.2%
1-year change
20
Median days on market
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 (state)
- 307.7 (+3.7% YoY)
Sources: home value index (ZIP-level) · FHFA House Price Index (state-level)
Market activity
- Median sale price
- $1.89M
- Median list price
- $2.20M
- Median price per sqft
- $797
- 1-year sale-price change
- -4.2%
- Median days on market
- 20 days
- Homes sold (recent period)
- 10
- For-sale inventory
- 22
- Sale-to-list ratio
- 104.9%
- Active listings
- 3
- 1-year forecast
- +4.0%
- New listings (monthly)
- 9
Source: recent area sales and market data (ZIP-level)
Rents
- Typical rent
- $7,396/mo
- Studio fair-market rent
- $1,207/mo
- 1BR fair-market rent
- $1,508/mo
- 2BR fair-market rent
- $1,877/mo
- 3BR fair-market rent
- $2,441/mo
- 4BR fair-market rent
- $2,816/mo
Sources: market rent index (ZIP-level) · HUD Fair Market Rents (metro/county-level, 40th-percentile regulatory reference)
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%
Sources: BEA Regional Price Parities (metro/state-level) · EIA energy rates (state-level) · Freddie Mac PMMS (national)
Schools
- Total schools
- 1
- Elementary schools
- 1
- Middle schools
- 0
- High schools
- 0
- Schools include
- Cos Cob School
Source: NCES school directory, 2022-23 (school-address-based)
Natural hazards & flood risk
- FEMA flood zone
- AE
- Flood risk level
- High
- Radon potential (county)
- High radon potential — EPA Zone 1 of 3
- EPA Superfund (NPL) sites within 5 mi
- None
- Nearest Superfund site
- Kellogg-Deering Well Field (9.8 mi)
Sources: FEMA National Risk Index (county-level) · FEMA flood data (ZIP-level) · USDA Forest Service Wildfire Risk to Communities (county-level) · EPA radon zones + Superfund NPL
Climate (30-year normals)
- Annual precipitation
- 50.8 in
- USDA plant hardiness zone
- 7a (extreme annual low 0 to 5°F)
Sources: NOAA Climate Normals (30-year, nearest-station) · USDA Plant Hardiness Zone Map (2023)
Air quality
- Air quality rating
- Good
- Median AQI (annual)
- 46
- Days with Good air quality
- 210
- Days with Moderate air quality
- 135
- Days with Unhealthy air quality
- 7
- Highest AQI recorded (year)
- 242
Source: EPA air quality data (nearest monitoring station, annual)
Walkability & transit
- Walkability index
- 6.5 / 20
- Transit service frequency
- -99,999
- Jobs reachable by car (30 min)
- 144,318
- Jobs reachable by transit (45 min)
- 125,739
Source: EPA Smart Location Database (metropolitan block groups)
Amenities
- National parks within ~60 mi
- 23
- Nearest national park
- Sagamore Hill National Historic Site (13 mi)
- National parks include
- Sagamore Hill National Historic Site, Weir Farm National Historical Park, Saint Paul's Church National Historic Site
- Airports within 30 mi
- 7
- Nearest airport
- Westchester County Airport (HPN) (6 mi)
- Nearest major airport
- Westchester County Airport (HPN) (6 mi)
- Hospitals nearby (~15 mi)
- 25
- Hospitals include
- GREENWICH HOSPITAL ASSOCIATION -, SILVER HILL HOSPITAL INC, ST JOSEPH'S MEDICAL CENTER
- Avg hospital rating (CMS)
- 3.0 / 5
- Best hospital rating nearby (CMS)
- 5.0 / 5
- EV charging stations (within 10 mi)
- 171
- Solar radiation rating
- Fair (4.0 kWh/m²/day)
Sources: National Park Service · FAA airport data · CMS hospital data · DOE/NREL (proximity-based)
Housing stock
- Median year housing built
- 1,964
- Housing built before 1970
- 56.7%
- Housing built 2000 or later
- 13.9%
- Median annual property tax
- $8,652
- Mean commute to work
- 21 min
- Households with broadband internet
- 92.5%
Source: Census ACS 5-year estimates (ZIP-level)
How it compares
| ZIP 06807 | State median | US median | |
|---|---|---|---|
| Median home value | $1.88M | $447,200 | $289,727 |
| Median sale price | $1.89M | $450,000 | $325,000 |
| Median days on market | 20 days | 39 days | 51 days |
| Typical rent | $7,396/mo | $2,213/mo | $1,808/mo |
| Median annual property tax | $8,652 | $6,234 | $2,006 |
State and US medians are computed across all US ZIP codes with sufficient public-data coverage, from the same sources as the figures above.
Area data compiled from public government, academic, and industry research feeds. Data sources →
Common questions
- What is the median home value in ZIP 06807?
- $1.88M.
- What is the median sale price in ZIP 06807?
- $1.89M.
- How long do homes take to sell in ZIP 06807?
- Median days on market: 20 days.
- What is typical rent in ZIP 06807?
- Typical rent: $7,396/month.
- Is ZIP 06807 in a flood zone?
- High (FEMA NFIP). FEMA flood zone AE.
- What is the radon potential in ZIP 06807?
- High radon potential — EPA Zone 1 of 3, county-level. EPA recommends testing every home regardless of zone.
- Are there Superfund sites near ZIP 06807?
- No current or proposed National Priorities List sites within 5 miles (EPA).
- How many schools serve ZIP 06807?
- 1 schools (1 elementary) (NCES, 2022-23).
- Is ZIP 06807 walkable?
- Walkability index: 6.5/20 (EPA Smart Location Database).
- What is the air quality in ZIP 06807?
- Good. Median AQI: 46. (EPA AQI).
- What is the cost of living in ZIP 06807?
- Regional Price Parity: 107.0 (100 = US average) (Above Average) (BEA RPP, metro/state-level).
Nearby ZIP codes
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Data last updated
Most recent source refresh: Sep 2026. See all data sources →