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Cos Cob
City in Connecticut, United States
Overview
Cos Cob is a charming, leafy suburb within Greenwich, Connecticut, boasting scenic river views, a strong sense of community, and easy rail access to New York City. The area blends coastal heritage with modern living and is prized for its safety and proximity to parks, marinas, and historic sites.
Geographic Context
Jurisdiction
United States
State
Connecticut
Population
—
Time Zone
America/New_York
Coordinates
41.03°, -73.60°
Key Metrics
Safety Score · estimate
88
Female Safety
85
LGBTQ+ Safety
85
Traffic Safety
92
Food Safety
98
Monthly Cost · estimate
$4,320
Local Cost
$3,000
Local Income
$6,000
Cashless
97
English
98
Temperature
11.0°C
Summer Avg
22.6°C
Winter Avg
-0.7°C
Record High
38.7°C
Record Low
-23.6°C
Humidity
80%
Precipitation
1236 mm
Internet Speed
315 Mbps
Upload
318 Mbps
Latency
6 ms
City Vibrancy
10
Coworking
0
Cafes
1
Nightlife
0
Parks
9
Transport
50
Walk Score
50
Footways
100.0
Airport
HPN
Distance
10 km
Explore
Data sources
Source-backed data
World Air Quality Index - Latest available city-level air quality station measurement. Record updated 2025-12-05.
OpenStreetMap - Nearby amenities counted from OpenStreetMap-derived city extracts. Record updated 2025-12-09.
OpenStreetMap transport extract - Walkability, footway density, and airport access metrics derived from mapped transport features. Record updated 2025-12-06.
Estimates and unverified origins
Oyster List climate data - Climate origins are unverified. Available methods include historical APIs and AI estimates; stored rows do not identify the original dataset, reference period, or model for each value. Treat these summaries as estimates until independently verified. Record updated 2026-03-22.
Oyster List city price estimates - Price origins are unverified. Available generation methods include AI estimates; stored records do not identify a survey, observation period, or model for each price. Record updated 2026-01-14.
Oyster List AI-assisted estimates - Safety, lifestyle, income, and practical scores include model-assisted estimates. Stored records do not identify supporting observations for each score. Model-reported confidence: 80/100; this is not a measured accuracy score. Model: derived+gpt-4.1. Record updated 2026-03-26.
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