Cos Cob, CT
Demographics And Statistics

Demographics | Cost Of Living
Updated: 2025-10-25

Living In Cos Cob, Connecticut Summary

Life in Cos Cob research summary. HomeSnacks has been using Saturday Night Science to research the quality of life in Cos Cob over the past nine years using Census, FBI, Zillow, and other primary data sources. Based on the most recently available data, we found the following about life in Cos Cob:

  • The population in Cos Cob is 7,354.

  • The median home value in Cos Cob is $1,440,513.

  • The median income in Cos Cob is $176,602.

  • The cost of living in Cos Cob is 215 which is 2.1x higher than the national average.

  • The median rent in Cos Cob is $2,574.

  • The unemployment rate in Cos Cob is 6.1%.

  • The poverty rate in Cos Cob is 5.5%.

  • The average high in Cos Cob is 60.9° and the average low is 42.3°.

Cos Cob SnackAbility

7
Overall SnackAbility
Jobs
8/10
Housing
10
Affordability
6
Diversity
8
Safety
N/A
Amenities
8.5
Education
9
Commute
5

Cos Cob, CT Cost Of Living

Cost of living in Cos Cob summary. We use data on the cost of living to determine how expensive it is to live in Cos Cob. Real estate prices drive most of the variance in cost of living around Connecticut. Key points include:

  • The cost of living in Cos Cob is 215 with 100 being average.

  • The cost of living in Cos Cob is 2.1x higher than the national average.

  • The median home value in Cos Cob is $1,440,513.

  • The median income in Cos Cob is $176,602.

215
Cos Cob's Overall Cost Of Living
2.1x
Higher Than The National Average

Cost Of Living In Cos Cob Comparison Table

Living Expense Cos Cob Connecticut National Average
Overall 215 119 100
Services 114 109 100
Groceries 106 100 100
Health 112 110 100
Housing 454 137 100
Transportation 102 101 100
Utilities 129 131 100

Cos Cob, CT Weather

  • The average high in Cos Cob is 60.9° and the average low is 42.3°.

  • There are 79.7 days of precipitation each year.

  • Expect an average of 49.1 inches of precipitation each year with 34.7 inches of snow.

StatCos Cob
Average Annual High60.9
Average Annual Low42.3
Annual Precipitation Days79.7
Average Annual Precipitation49.1
Average Annual Snowfall34.7
60.9°
Average High
79.7
Days of Rain

Rankings for Cos Cob in Connecticut

Locations Around Cos Cob

Map Of Cos Cob, CT

Best Places Around Cos Cob

1

Plainview, NY
Population 26,251

2

Syosset, NY
Population 18,274

3

Bronxville, NY
Population 6,539

4

Pelham Manor, NY
Population 5,648

5

Jericho, NY
Population 14,117

6

East Hills, NY
Population 7,249

7

Pleasantville, NY
Population 7,395

8

Larchmont, NY
Population 6,542

9

Briarcliff Manor, NY
Population 7,333

10

Port Washington, NY
Population 17,613

Cos Cob Demographics And Statistics

Population over time in Cos Cob

The current population in Cos Cob is 7,354. The population has increased 20.0% from 2010.

Year Population % Change
2023 7,354 1.5%
2022 7,243 2.2%
2021 7,089 0.3%
2020 7,065 1.1%
2019 6,990 0.4%
2018 6,959 1.7%
2017 6,840 4.7%
2016 6,535 1.6%
2015 6,433 2.7%
2014 6,265 -1.3%
2013 6,346 -3.9%
2012 6,605 1.0%
2011 6,542 6.8%
2010 6,126 -

Race / Ethnicity in Cos Cob

White
67.2% (4,944)
African American
2.9% (211)
American Indian
0.4% (26)
Asian
5.4% (394)
Hawaiian
0.0% (0)
Other
0.8% (59)
Two Or More
9.2% (677)
Hispanic
14.2% (1,043)

Cos Cob is:

  • 67.2% White with 4,944 White residents.

  • 2.9% African American with 211 African American residents.

  • 0.4% American Indian with 26 American Indian residents.

  • 5.4% Asian with 394 Asian residents.

  • 0.0% Hawaiian with 0 Hawaiian residents.

  • 0.8% Other with 59 Other residents.

  • 9.2% Two Or More with 677 Two Or More residents.

  • 14.2% Hispanic with 1,043 Hispanic residents.

Race Cos Cob CT USA
White 67.2% 63.0% 58.2%
African American 2.9% 9.9% 12.0%
American Indian 0.4% 0.1% 0.5%
Asian 5.4% 4.7% 5.7%
Hawaiian 0.0% 0.0% 0.2%
Other 0.8% 0.7% 0.5%
Two Or More 9.2% 3.8% 3.9%
Hispanic 14.2% 17.8% 19.0%

Gender in Cos Cob

Female
51.4% (3,781)
Male
48.6% (3,573)
  • Cos Cob is 51.4% female with 3,781 female residents.

  • Cos Cob is 48.6% male with 3,573 male residents.

Gender Cos Cob CT USA
Female 51.4% 50.9% 50.5%
Male 48.6% 49.1% 49.5%

Highest level of educational attainment in Cos Cob for adults over 25

  • 1.0% of adults in Cos Cob completed < 9th grade.

  • 3.0% of adults in Cos Cob completed 9-12th grade.

  • 15.0% of adults in Cos Cob completed high school / ged.

  • 6.0% of adults in Cos Cob completed some college.

  • 5.0% of adults in Cos Cob completed associate's degree.

  • 33.0% of adults in Cos Cob completed bachelor's degree.

  • 29.0% of adults in Cos Cob completed master's degree.

  • 7.0% of adults in Cos Cob completed professional degree.

  • 1.0% of adults in Cos Cob completed doctorate degree.

< 9th Grade
1.0% (73)
9-12th Grade
3.0% (220)
High School / GED
15.0% (1,103)
Some College
6.0% (441)
Associate's Degree
5.0% (367)
Bachelor's Degree
33.0% (2,426)
Master's Degree
29.0% (2,132)
Professional Degree
7.0% (514)
Doctorate Degree
1.0% (73)
Education Cos Cob CT USA
< 9th Grade 1.0% 3.0% 5.0%
9-12th Grade 3.0% 5.0% 6.0%
High School / GED 15.0% 26.0% 26.0%
Some College 6.0% 16.0% 19.0%
Associate's Degree 5.0% 8.0% 9.0%
Bachelor's Degree 33.0% 23.0% 21.0%
Master's Degree 29.0% 14.0% 10.0%
Professional Degree 7.0% 3.0% 2.0%
Doctorate Degree 1.0% 2.0% 2.0%

Household Income For Cos Cob, Connecticut

  • 1.7% of households in Cos Cob earn Less than $10,000.

  • 1.6% of households in Cos Cob earn $10,000 to $14,999.

  • 0.8% of households in Cos Cob earn $15,000 to $24,999.

  • 4.7% of households in Cos Cob earn $25,000 to $34,999.

  • 3.8% of households in Cos Cob earn $35,000 to $49,999.

  • 6.9% of households in Cos Cob earn $50,000 to $74,999.

  • 7.7% of households in Cos Cob earn $75,000 to $99,999.

  • 16.9% of households in Cos Cob earn $100,000 to $149,999.

  • 9.5% of households in Cos Cob earn $150,000 to $199,999.

  • 46.4% of households in Cos Cob earn $200,000 or more.

Less than $10,000
1.7% (12,838)
$10,000 to $14,999
1.6% (11,721)
$15,000 to $24,999
0.8% (6,139)
$25,000 to $34,999
4.7% (34,607)
$35,000 to $49,999
3.8% (28,188)
$50,000 to $74,999
6.9% (50,515)
$75,000 to $99,999
7.7% (56,376)
$100,000 to $149,999
16.9% (124,194)
$150,000 to $199,999
9.5% (69,772)
$200,000 or more
46.4% (341,046)
Income Cos Cob CT USA
Less than $10,000 1.7% 4.4% 4.9%
$10,000 to $14,999 1.6% 3.2% 3.6%
$15,000 to $24,999 0.8% 5.6% 6.6%
$25,000 to $34,999 4.7% 5.6% 6.8%
$35,000 to $49,999 3.8% 8.6% 10.4%
$50,000 to $74,999 6.9% 13.4% 15.7%
$75,000 to $99,999 7.7% 12.0% 12.7%
$100,000 to $149,999 16.9% 17.8% 17.4%
$150,000 to $199,999 9.5% 11.2% 9.3%
$200,000 or more 46.4% 18.2% 12.6%

Articles About Connecticut

Enjoy The Snack?