Cos Cob, CT Demographics

Population - Employment - Households - Income / Financial - Housing - Education - Marital Status - Means of Transport to Work - Median Income by Zipcode

What is the population of Cos Cob?

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There are 7,089 residents in Cos Cob, with a median age of 41.1. Of this, 48.92% are males and 51.08% are females. US-born citizens make up 76.54% of the resident pool in Cos Cob, while non-US-born citizens account for 11.86%. Additionally, 11.6% of the population is represented by non-citizens.
A total of 6,033 people in Cos Cob currently live in the same house as they did last year.
Y-o-Y Change
Total Population 7,089 0.3%
Male Population 3,468 3.2%
Female Population 3,621 -2.2%
Male population 48.92%
Female population 51.08%
Y-o-Y Change
Median Age 41.1 -2.4%
Citizen US Born 5,426 -0.7%
Citizen not US Born 841 0.6%
Not Citizen 822 7.6%
Citizen US Born 76.54%
Citizen not US Born 11.86%
Not Citizen 11.6%
Y-o-Y Change
Moved from Abroad 133 -5.0%
Moved from Same County 574 -2.9%
Moved from Same State 36 -21.7%
Moved from Different State 172 34.4%
Same House as Last Year 6,033 -0.6%
Moved from Abroad 1.91%
Moved from Same County 8.26%
Moved from Same State 0.52%
Moved from Different State 2.48%
Same House as Last Year 86.83%

What are the employment statistics in Cos Cob?

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White-collar workers make up 85.72% of the working population in Cos Cob, while blue-collar employees account for 14.28%. There are also 771 entrepreneurs in Cos Cob (20.81% of the workforce); 2,366 workers employed in private companies (63.86%); and 364 people working in governmental institutions (9.82%).
Y-o-Y Change
White Collar 3,176 2.6%
Blue Collar 529 11.8%
White Collar 85.72%
Blue Collar 14.28%
Y-o-Y Change
Self Employees 771 -0.1%
Private Companies 2,366 6.6%
Governmental Workers 364 -1.4%
Not for Profit Companies 204 -1.9%
Self Employees 20.81%
Private Companies 63.86%
Governmental Workers 9.82%
Not for Profit Companies 5.51%

How many households are there in Cos Cob?

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There are a total of 2,572 households in Cos Cob, each made up of around 3 members. Family establishments represent 73.95% of these Cos Cob households, while non-family units account for the remaining 26.05%. Additionally, 42.5% of households have children and 57.5% of households are without children.
Y-o-Y Change
Total Households 2,572 -0.6%
Average People Per Household 3 0.7%
Family Households 1,902 -1.7%
Non-family Households 670 2.8%
Family Households 73.95%
Non-family Households 26.05%
Y-o-Y Change
Households with Children 1,093 2.8%
Households without Children 1,479 -3.0%
Households with Children 42.5%
Households without Children 57.5%

What are the median and average incomes in Cos Cob?

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The average annual household income in Cos Cob is $224,230, while the median household income sits at $138,125 per year.
Y-o-Y Change
Average Household Income $224,230 12.5%
Median Household Income $138,125 1.1%
People below Poverty Level 544 15.7%
People above Poverty Level 6,379 -1.5%

How many homeowners and renters are there in Cos Cob?

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There are 2,643 housing units in Cos Cob, and the median year in which these properties were built is 1961. Of the 2,572 occupied housing units in Cos Cob, 67.92% are owner-occupied, while 32.08% have renters living in them.
Meanwhile, properties bought with mortgages account for 74.36% of the units, and the median value of a home with a mortgage is $1,000,700. In general, housing costs reach $2,936 per month in Cos Cob.
Y-o-Y Change
Housing Units 2,643 -1.9%
Median Year Built 1961 0.1%
Built in 1939 or Earlier 746 -9.0%
Built between 1940 and 1949 76 -40.6%
Built between 1950 and 1959 462 15.2%
Built between 1960 and 1969 382 1.6%
Built between 1970 and 1979 352 -1.1%
Built between 1980 and 1989 268 1.5%
Built between 1990 and 1999 154 -3.8%
Built between 2000 and 2009 145 -13.7%
Built between 2010 and 2019 58 N/A
Y-o-Y Change
Occupied Housing Units 2,572 -0.6%
Owner Occupied 1,747 -0.8%
Renter Occupied 825 0.0%
Owner Occupied 67.92%
Renter Occupied 32.08%
Y-o-Y Change
With Mortgage 1,299 -0.5%
Without Mortgage 448 -1.8%
Median Value with Mortgage $1,000,700 -6.0%
Median Value without Mortgage $1,050,500 7.3%
Median Housing Costs per Month $2,936 10.0%
With Mortgage 74.36%
Without Mortgage 25.64%

What is the level of education in Cos Cob?

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Approximately 22.19% of the population in Cos Cob holds a high school degree (that's 1,125 residents), while 6.19% have attained a college certificate (529 locals) and 33.66% have a bachelor's degree (1,706 people).
Y-o-Y Change
No High School 144 24.1%
Some High School 1,125 4.8%
Some College 529 -10.5%
Associate Degree 309 10.4%
Bachelor's Degree 1,706 -2.4%
Graduate Degree 1,471 0.1%
No High School 2.84%
Some High School 22.19%
Some College 6.19%
Associate Degree 6.1%
Bachelor's Degree 33.66%
Graduate Degree 29.02%

What is the marital status of Cos Cob residents?

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A total of 1,597 people in Cos Cob have never been married (which represents 28.76% of the total population), while 3,249 of them are wedded (58.52%). Separated and divorced residents are in smaller numbers, at 37 (0.67%) and 520 (9.37%), respectively.
Y-o-Y Change
Never Married 1,597 3.5%
Married 3,249 1.3%
Separated 37 -5.1%
Widowed 186 -22.2%
Divorced 520 -9.4%
Never Married 28.76%
Married 58.52%
Separated 0.67%
Widowed 3.35%
Divorced 9.37%

What are the most common means of transportation in Cos Cob?

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The top three means of transportation people in Cos Cob use to get to work are: car, subway or elevated and walking. A total of 2,322 residents commute by car, 350 prefer going to work by subway or elevated and 31 by walking.
Y-o-Y Change
Car 2,322 -0.5%
Bus or TrolleyBus 6 0.0%
Subway or Elevated 350 N/A
TaxiCab 3 0.0%
Walk 31 181.8%

What is the median and average household income in Cos Cob by zipcode?

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ZipCode Population Number of Households Median Income Average Income
06807 7,504 2,713 $144,861.00 $252,090.00

Methodology & Disclaimers


Demographic data shown in this section was gathered from the latest U.S. Census Bureau release, the 2021 American Community Survey. The information is updated yearly, as soon as new data is made available by the US Census Bureau.
No representation, guarantee or warranty is made as to the accuracy or completeness of information modified or aggregated for specific neighborhoods and/or zip codes.

Zip codes included in this demographic data: 06807

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