United States › Connecticut › Cos Cob CITY
Cos Cob Connecticut · 7,546 residents · 2.15 sq mi
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The short version
Cos Cob is home to 7,546 people in Connecticut. That is roughly 99% ahead of the Connecticut median. This is an unusually credentialed place: 70% of adults have a four-year degree. The typical home is worth $1,210,400. Median household income runs $190,481, well clear of the $82,259 US median. Renters pay $3,067 a month at the median.
At a glance
Wealthier
above the US median
US median: $82,259
Mid-age
median age 39.6
US median: 38.9
More educated
70% hold a bachelor's degree
US average: 36%
Stable housing
home values roughly flat, inflation adjusted
US median home: $376,019
Section 01
Population & growth 3,507 / sq mi
+3%since 2023
from 3,417 / sq mi in 2023
US average: 281
from 39.3 in 2023
US average: 38.9
Population, 2010 – 2024
6K 7K 7K 7K 8K 2010 2020 2024 Cos Cob Age distribution, 2024
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy $190,481
+5%inflation adjusted, since 2023
from $176,602 in 2023
US average: $82,259
from $99,232 in 2023
US average: $44,673
Households earning $100K+
from 80.4% in 2023
US average: 53.3%
from 5.5% in 2023
US average: 12.5%
from 0.491 in 2023
US average: 0.476
Workforce by industry, 2024
Public administration 15.2%
Arts, entertainment, food 7.5%
Professional, scientific, technical 2.2%
Transportation & warehousing 0.8%
Education & health services 0.6%
Agriculture, forestry, fishing 0.1%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
$1,210,400
+2%inflation adjusted, since 2023
from $1,149,500 in 2023
US average: $376,019
$3,067
+16%inflation adjusted, since 2023
from $2,574 in 2023
US average: $1,442
from 65.4% in 2023
33.3% rent
from 2.8% in 2023
US average: 10.0%
from 2.78 people in 2023
US average: 2.54
from 21.5% in 2023
US average: 22.9%
from 57.5% in 2023
US average: 47.4%
from 6.5 in 2023
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
Section 04
Race & ethnicity 2023
White, non-Hispanic 67.2%(4,944)
Hispanic / Latino 14.2%(1,043)
2024
White, non-Hispanic 64.4%(4,863)
Hispanic / Latino 15%(1,131)
from 64 in 2023
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Section 04 · Origins
Detailed origins & ancestry Ancestry
+ 23 more ancestry groups with data from 70.3% in 2023
US average: 35.6%
High school or higher
from 96.1% in 2023
US average: 89.6%
from 36.9% in 2023
US average: 14.0%
Section 06
Commute & transportation from 29.2 min in 2023
US average: 26.5
from 54.8% in 2023
US average: 68.9%
from 4.9% in 2023
US average: 8.5%
from 9.0% in 2023
US average: 3.2%
from 27.9% in 2023
US average: 15.0%
from 1.9% in 2023
US average: 2.4%
from 0.0% in 2023
US average: 0.4%
from 3.0% in 2023
US average: 8.3%
Section 07
Work & employment from 6.1% in 2023
US average: 5.2%
from 72.3% in 2023
US average: 63.5%
Women 20-64 in the labor force
US average: 74.6%
from 7.8% in 2023
US average: 13.1%
from 51.1% in 2023
US average: 42.5%
Section 08
People & community from 25.2% in 2023
US average: 14.1%
from 2.9% in 2023
US average: 6.2%
from 6.7% in 2023
US average: 13.3%
from 3.4% in 2023
US average: 8.4%
from 99.5% in 2023
US average: 91.0%
Computer in household
US average: 95.5%
from 75.0% in 2023
US average: 77.7%
from 6.5% in 2023
US average: 13.6%
Marital status
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage from 3.4% in 2023
US average: 8.4%
Direct-purchase
US average: 13.8%
VA health care
US average: 2.2%
Any private
US average: 67.1%
Any public
US average: 36.7%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans Veterans by period of service, 2024
Gulf War (2001 or later) 2.4%(4)
Share of the 164 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
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Drill deeper
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Frequently asked
How many people live in Cos Cob, Connecticut? Cos Cob, Connecticut has about 7,546 residents according to the 2024 American Community Survey.
What is the median household income in Cos Cob, Connecticut? The typical household in Cos Cob, Connecticut earns about $190,481 a year. Half of households make more than that, and half make less.
Is Cos Cob, Connecticut expensive? In Cos Cob, Connecticut, the median home is worth about $1,210,400, and the typical rent is about $3,067 a month.
How educated are people in Cos Cob, Connecticut? About 70.2% of adults age 25 and over in Cos Cob, Connecticut hold a bachelor's degree or higher.
What is the poverty rate in Cos Cob, Connecticut? About 5.6% of people in Cos Cob, Connecticut live below the federal poverty line.
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