Cos Cob CDP, Connecticut demographics
Population: 7,089
Median age: 41.1
Median household income: 138,125
Cos Cob is a CDP in Fairfield County, Connecticut, United States.
Demographics, population, home values, social and economic characteristics of Cos Cob CDP, CT.
Population
| 2021 | 7,089 |
| 2020 | 7,065 |
| 2019 | 6,990 |
| 2018 | 6,959 |
| 2017 | 6,840 |
| 2016 | 6,535 |
| 2015 | 6,433 |
| 2014 | 6,265 |
| 2013 | 6,346 |
| 2012 | 6,605 |
| 2011 | 6,542 |
| 2010 | 6,126 |
Census data for Cos Cob CDP, Connecticut
Demographic and housing estimates in Cos Cob CDP, Connecticut
| Total population | 7,089 |
| Male | 3,468 |
| Female | 3,621 |
| Total population | 7,089 |
| Under 5 years | 498 |
| 5 to 9 years | 578 |
| 10 to 14 years | 461 |
| 15 to 19 years | 629 |
| 20 to 24 years | 244 |
| 25 to 34 years | 621 |
| 35 to 44 years | 904 |
| 45 to 54 years | 1,083 |
| 55 to 59 years | 600 |
| 60 to 64 years | 427 |
| 65 to 74 years | 610 |
| 75 to 84 years | 226 |
| 85 years and over | 208 |
| Median age (years) | 41.1 |
| Under 18 years | 2,020 |
| 16 years and over | 5,378 |
| 18 years and over | 5,069 |
| 21 years and over | 4,894 |
| 62 years and over | 1,325 |
| 65 years and over | 1,044 |
| Total population | 7,089 |
| One race | 6,499 |
| White | 5,769 |
| Black or African American | 20 |
| American Indian and Alaska Native | 11 |
| Asian | 384 |
| Native Hawaiian and Other Pacific Islander | 0 |
| Some other race | 315 |
| Two or more races | 590 |
| Citizen, VOTING AGE 18 and over population | 4,511 |
| Male Citizen, VOTING AGE 18 and over population | 2,195 |
| Female Citizen, VOTING AGE 18 and over population | 2,316 |
Social characteristics in Cos Cob CDP, Connecticut
| Total households | 2,572 |
| Family households (families) | 1,582 |
| Married-couple family | 108 |
| Male householder, no wife present, family | 282 |
| Female householder, no husband present, family | 216 |
| Nonfamily households | 600 |
| Average household size | 693 |
| Average family size | 2.74 |
Economic characteristics in Cos Cob CDP, Connecticut
| Total households | 2,572 |
| Less than $10,000 | 44 |
| $10,000 to $14,999 | 99 |
| $15,000 to $24,999 | 34 |
| $25,000 to $34,999 | 187 |
| $35,000 to $49,999 | 112 |
| $50,000 to $74,999 | 261 |
| $75,000 to $99,999 | 274 |
| $100,000 to $149,999 | 358 |
| $150,000 to $199,999 | 173 |
| $200,000 or more | 1,030 |
| Median household income (dollars) | 138,125 |
Housing characteristics in Cos Cob CDP, Connecticut
| Total housing units | 2,643 |
| Occupied housing units | 2,572 |
| Vacant housing units | 71 |
| Total housing units | 2,643 |
| 1-unit, detached | 1,558 |
| 1-unit, attached | 309 |
| 2 units | 462 |
| 3 or 4 units | 138 |
| 5 to 9 units | 42 |
| 10 to 19 units | 84 |
| 20 or more units | 50 |
| Mobile home | 0 |
| Boat, RV, van, etc. | 0 |
| Total housing units | 2,643 |
| Built 2014 or later | 0 |
| Built 2010 to 2013 | 58 |
| Built 2000 to 2009 | 145 |
| Built 1990 to 1999 | 154 |
| Built 1980 to 1989 | 268 |
| Built 1970 to 1979 | 352 |
| Built 1960 to 1969 | 382 |
| Built 1950 to 1959 | 462 |
| Built 1940 to 1949 | 76 |
| Built 1939 or earlier | 746 |
| Total housing units | 2,643 |
| 1 room | 0 |
| 2 rooms | 20 |
| 3 rooms | 238 |
| 4 rooms | 162 |
| 5 rooms | 356 |
| 6 rooms | 475 |
| 7 rooms | 422 |
| 8 rooms | 504 |
| 9 rooms or more | 466 |
| Median rooms | 6.7 |
| Total housing units | 2,643 |
| No bedroom | 0 |
| 1 bedroom | 179 |
| 2 bedrooms | 540 |
| 3 bedrooms | 977 |
| 4 bedrooms | 708 |
| 5 or more bedrooms | 239 |
| Occupied housing units | 2,572 |
| Owner-occupied | 1,747 |
| Renter-occupied | 825 |
| Average household size of owner-occupied unit | 2.83 |
| Average household size of renter-occupied unit | 2.55 |
| Occupied housing units | 2,572 |
| Moved in 2017 or later | 249 |
| Moved in 2015 to 2016 | 742 |
| Moved in 2010 to 2014 | 455 |
| Moved in 2000 to 2009 | 616 |
| Moved in 1990 to 1999 | 221 |
| Moved in 1989 and earlier | 289 |
| Owner-occupied units | 1,747 |
| Less than $50,000 | 11 |
| $50,000 to $99,999 | 0 |
| $100,000 to $149,999 | 0 |
| $150,000 to $199,999 | 39 |
| $200,000 to $299,999 | 12 |
| $300,000 to $499,999 | 41 |
| $500,000 to $999,999 | 749 |
| $1,000,000 or more | 895 |
| Median (dollars) | 1,019,100 |
| Owner-occupied units | 1,747 |
| Housing units with a mortgage | 1,299 |
| Housing units without a mortgage | 448 |
| Occupied units paying rent | 807 |
| Less than $500 | 0 |
| $500 to $999 | 131 |
| $1,000 to $1,499 | 70 |
| $1,500 to $1,999 | 199 |
| $2,000 to $2,499 | 145 |
| $2,500 to $2,999 | 98 |
| $3,000 or more | 164 |
| Median (dollars) | 2,012 |
| No rent paid | 18 |
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