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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
88
Female Safety
85
LGBTQ+ Safety
85
Traffic Safety
92
Food Safety
98
Monthly Cost
$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
Frequently Asked Questions
Data sources
Source-backed data
NASA POWER - Climate normals and monthly weather measurements rendered as city weather metrics. Updated 2026-03-22.
World Air Quality Index - Latest available city-level air quality station measurement. Updated 2025-12-05.
Ookla Open Data - Internet speed aggregates for 2024Q3 from 13 tests. Updated 2025-12-05.
OpenStreetMap - Nearby amenities counted from OpenStreetMap-derived city extracts. Updated 2025-12-09.
OpenStreetMap transport extract - Walkability, footway density, and airport access metrics derived from mapped transport features. Updated 2025-12-06.
Oyster List city price model - City price estimates calibrated from local price surveys and jurisdiction-level cost signals. Updated 2026-01-14.
Estimated data
Oyster List AI-assisted estimates - Safety, lifestyle, income, and practical scores are model-assisted estimates derived from source-backed country and city signals. Confidence 80/100.
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