The Town FilesCos Cob, Connecticut
Community · population 6,873 (2020 Census)
- Median home
- $1,210,400
- Household income
- $190,481
- Jan low / Jul high
- 22° / 85°
- Snow a year
- 34 in
- Tornadoes ≤10 mi since 1950
- 8
- Median age
- 39.6
Cos Cob is a community of 6,873 people, Connecticut. The median home is worth $1,210,400, above the typical Connecticut town ($376,000). It ranks better for young professionals than 93% of Connecticut towns, more seaside character than 90% of Connecticut towns, more walkable than 89% of Connecticut towns.
How Cos Cob ranks
Percentile among Connecticut towns with at least 500 people on The Town Files lifestyle rankings. 50 is typical for the state; 90 means better than 90% of Connecticut towns.
Homes and cost of living
The median home in Cos Cob is worth $1,210,400, above the typical Connecticut town ($376,000). Homes cost about 6.4 times the median household income of $190,481, which is more affordable than 7% of Connecticut towns. Median rent is $3,067 a month. 66.7% of households own their home.
| Housing | Cos Cob | Typical Connecticut town |
|---|---|---|
| Median home value | $1,210,400 | $376,000 |
| Median rent | $3,067 | $1,462 |
| Median household income | $190,481 | $109,167 |
| Home value ÷ income | 6.4× | 3.6× |
| Homeownership | 66.7% | 80.3% |
| Median year built | 1959 | 1969 |
| Seasonal / vacation homes | 0.8% | — |
Who lives in Cos Cob
| People | Cos Cob | Typical Connecticut town |
|---|---|---|
| Median age | 39.6 | 45.0 |
| Age 65 and over | 15.5% | 20.6% |
| Under 18 | 29.3% | — |
| Bachelor's degree or higher | 70.2% | 45.8% |
| Below the poverty line | 5.6% | 5.7% |
| Veterans | 3.1% | — |
| Born outside the U.S. | 25.2% | — |
| Work from home | 30.0% | 16.8% |
| Average commute | 28.9 min | 27.6 min |
| Homes with broadband | 99.3% | 93.8% |
Weather in Cos Cob
July highs average 84.8°F and January lows 22.2°F. About 51.6 inches of rain and melted snow fall a year, with 34.0 inches of snow (typical Connecticut town: 39.0 in). Expect about 18 days a year at 90°F or hotter and 119 nights at or below freezing.
Tornadoes, storms and disasters
8 tornadoes have passed within 10 miles of Cos Cob since 1950, compared with 8 for the typical Connecticut town. 2 rated (E)F2 or stronger. The strongest, an F2, struck on July 12, 2006 about 6.6 miles from the town center. The most recent was on October 2, 2018.
Hail of 1 inch or larger has been reported within 10 miles 12 times; the largest was 3.00 inches on August 1, 2011.
Public schools in Cos Cob
1 public school with 340 students, about 9.7 students per teacher.
| School | Grades | Students | Per teacher |
|---|---|---|---|
| Cos Cob School | K-5 | 340 | 9.7 |
Towns near Cos Cob
- Riverside, CT1.3 mi · 8,843 people · home $1,900,300
- Greenwich, CT2.2 mi · 63,518 people · home $1,695,700
- Greenwich, CT2.3 mi · 13,836 people · home $1,515,700
- Old Greenwich, CT2.3 mi · 6,962 people · home $1,844,700
- Stamford, CT3.2 mi · 135,470 people · home $624,400
- Glenville, CT3.9 mi · 2,762 people · home $1,148,600
- Pemberwick, CT4.0 mi · 3,899 people · home $940,200
- Byram, CT4.6 mi · 4,493 people · home $838,400
Cos Cob questions
Is Cos Cob, Connecticut a good place to retire?
On The Town Files lifestyle rankings, Cos Cob scores better for retirees than 62% of Connecticut towns and quieter than 11%. 15.5% of residents are 65 or older (median age 39.6).
How much does a house cost in Cos Cob?
The median owner-occupied home in Cos Cob is valued at $1,210,400 (Census ACS 2020–2024), against a median household income of $190,481, so homes cost about 6.4 times income. Median rent is $3,067 a month.
What is the weather like in Cos Cob?
July highs average 84.8°F and January lows 22.2°F (NOAA 1991–2020 normals). It gets about 51.6 inches of precipitation a year and 34.0 inches of snow.
Does Cos Cob get tornadoes?
8 tornadoes have passed within 10 miles of Cos Cob since 1950 (NOAA Storm Events); the strongest was a F2 on July 12, 2006. The typical Connecticut town has had 8.
- U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024)
- U.S. Census Bureau, 2020 Census and 2025 Gazetteer (2020 / 2025)
- NOAA NCEI U.S. Climate Normals (1991–2020)
- NOAA NCEI Storm Events Database (1950–2026)
- FEMA OpenFEMA Disaster Declarations (this product uses the FEMA OpenFEMA API but is not endorsed by FEMA) (1953–2026)
- NCES Common Core of Data (2023–24)
- BLS Quarterly Census of Employment and Wages; USDA ERS county unemployment (BLS LAUS) (2000–2024)
- The Town Files lifestyle rankings, built from federal demographic, school, crime and housing data (2025)