CensusEasy
CITY · 2020 ACS

Cos Cob

Connecticut · 6,873 residents · 2.152 sq mi
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The short version

Cos Cob is significantly wealthier than the US average, with a median household income of $136,642. Population has held roughly steady since 2019. 66% of adults hold a bachelor's degree or higher, well above the national rate of 33%. Median home value is $1,038,900. Households here earn about 71% more than the Connecticut median.

At a glance
Wealthier
above the US median
US median: $66,278
Older
median age 42.8
US median: 38.8
More educated
66% hold a bachelor's degree
US average: 33%
Stable housing
home values roughly flat, inflation adjusted
US median home: $265,253
Section 01

Population & growth

6,873
−2%since 2019
from 6,990 in 2019
2010 – 2024
3,194 / sq mi
−2%since 2019
from 3,248 / sq mi in 2019
US average: 280
42.8
Unchangedsince 2019
from 42.8 in 2019
US average: 38.8
Population, 20102024
6K7K7K7K8K201020202024Cos Cob
20248K
201020202024
Section 02

Income & economy

$136,642
−10%inflation adjusted, since 2019
from $149,375 in 2019
US average: $66,278
2010 – 2024
$75,589
−4%since 2019
from $78,625 in 2019
US average: $35,364
Households earning $100K+
68.8%
−2.9 ptssince 2019
from 71.7% in 2019
US average: 43.9%
6.7%
+0.1 ptssince 2019
from 6.5% in 2019
US average: 12.8%
Workforce by industry, 2020
Other services21.5%
US avg: 6.6%
Public administration14.9%
US avg: 4.7%
Wholesale trade8.9%
US avg: 6.7%
Arts, entertainment, food6.1%
US avg: 2%
Retail trade4.7%
US avg: 10%
Information3.7%
US avg: 11.1%
Transportation & warehousing3.6%
US avg: 2.5%
Finance & insurance2.5%
US avg: 5.5%
Professional, scientific, technical2.4%
US avg: 4.7%
Agriculture, forestry, fishing0.3%
US avg: 1.7%
Construction0.3%
US avg: 1.2%
Education & health services0.1%
US avg: 0.8%
Manufacturing0%
US avg: 0.5%
BARS: THIS PLACE · TICKS: US AVERAGE
Section 03

Housing

$1,038,900
−3%inflation adjusted, since 2019
from $1,055,400 in 2019
US average: $265,253
2010 – 2024
$1,864
−7%inflation adjusted, since 2019
from $1,979 in 2019
US average: $1,124
70.2%
+1.8 ptssince 2019
from 68.5% in 2019
29.8% rent
7.6
+8%since 2019
from 7.1 in 2019
2010 – 2024
RELATED:See current rent listings in Cos Cob on RentDataNow
Section 04

Race & ethnicity

2019
White, non-Hispanic75.4%(5,269)
Black0.1%(5)
Hispanic / Latino11.9%(829)
Asian10.1%(706)
Other2.6%(181)
Diversity Score50.9%(3,555)
2020
White, non-Hispanic74.9%(5,149)
Black1%(67)
Hispanic / Latino10.5%(723)
Asian7.7%(529)
Other6.8%(466)
Diversity Score53.4%(3,671)
53
+5%since 2019
from 51 in 2019
2010 – 2024
Section 05

Education

65.9%
−5.3 ptssince 2019
from 71.2% in 2019
US average: 32.9%
High school or higher
94.7%
−1.7 ptssince 2019
from 96.3% in 2019
US average: 88.5%
31.2%
−2.3 ptssince 2019
from 33.4% in 2019
US average: 12.7%
Section 06

Commute & transportation

31.0 min
−10%since 2019
from 34.3 min in 2019
US average: 26.9
60.9%
−1.2 ptssince 2019
from 62.1% in 2019
US average: 75.1%
3.8%
Unchangedsince 2019
from 3.9% in 2019
US average: 8.4%
Section 07

Work & employment

6.1%
+1.0 ptssince 2019
from 5.1% in 2019
US average: 5.4%
70.5%
+2.5 ptssince 2019
from 68.0% in 2019
US average: 63.4%
53.1%
−4.5 ptssince 2019
from 57.6% in 2019
US average: 39.3%
Section 08

People & community

47.6%
−0.9 ptssince 2019
from 48.5% in 2019
52.4%
+0.9 ptssince 2019
from 51.5% in 2019
21.7%
−1.2 ptssince 2019
from 22.9% in 2019
US average: 13.5%
2.2%
−1.1 ptssince 2019
from 3.3% in 2019
US average: 8.8%
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Frequently asked

How many people live in Cos Cob, Connecticut?

Cos Cob, Connecticut has about 6,873 residents according to the 2020 American Community Survey.

What is the median household income in Cos Cob, Connecticut?

The typical household in Cos Cob, Connecticut earns about $136,642 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 $1,038,900, and the typical rent is about $1,864 a month.

How educated are people in Cos Cob, Connecticut?

About 65.9% 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 6.7% of people in Cos Cob, Connecticut live below the federal poverty line.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →