Cos Cob

In Western Connecticut Planning Region, Connecticut.

Population: 7,354
Median household income: $176,602
Median home value: $1,149,500

Cos Cob is a community in Western Connecticut Planning Region, Connecticut, home to 7,354 residents. Its median household income of $176,602 runs above the Western Connecticut Planning Region figure of $124,553.

Between 2019 and 2023, Cos Cob's population grew 5.2% from 6,990 to 7,354, while its median home value rose 8.9% from $1,055,400 to $1,149,500.

58.2% of homes are single-family detached houses. The typical home was built around 1959.

Demographics

ACS 2019–2023

Population: 7,354
Median age: 39.3 yrs
Median household income: $176,602
Median home value: $1,149,500
Median gross rent: $2,574
Housing units: 2,711
Homeownership rate: 65.4%
Bachelor's degree or higher: 70.3%
Unemployment rate: 6.1%

Trends

ACS 5-year · 2019–2023

Population

6,9907,354

Median household income

$149,375$176,602

Median home value

$1,055,400$1,149,500

Median gross rent

$1,979$2,574

Year	Population	Median household income	Median home value	Median gross rent
2019	6,990	$149,375	$1,055,400	$1,979
2020	7,065	$136,642	$1,038,900	$1,864
2021	7,089	$138,125	$1,019,100	$2,012
2022	7,243	$185,125	$1,138,300	$2,412
2023	7,354	$176,602	$1,149,500	$2,574

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

Under 59.0%

5 to 1720.0%

18 to 246.1%

25 to 348.6%

35 to 4415.2%

45 to 5413.3%

55 to 6413.9%

65 to 748.9%

75 and over4.9%

	Count	Share
Under 5	662	9.0%
5 to 17	1,472	20.0%
18 to 24	448	6.1%
25 to 34	634	8.6%
35 to 44	1,120	15.2%
45 to 54	978	13.3%
55 to 64	1,024	13.9%
65 to 74	654	8.9%
75 and over	362	4.9%

Race & ethnicity

	Count	Share
White (non-Hispanic)	4,944	67.2%
Black or African American	211	2.9%
American Indian & Alaska Native	26	0.4%
Asian	394	5.4%
Native Hawaiian & Pacific Islander	0	0.0%
Some other race	59	0.8%
Two or more races	677	9.2%
Hispanic or Latino (any race)	1,043	14.2%

Educational attainment (age 25+)

No high school diploma3.9%

High school graduate15.0%

Some college or associate's10.8%

Bachelor's degree33.4%

Graduate or professional degree36.9%

	Count	Share
No high school diploma	184	3.9%
High school graduate	717	15.0%
Some college or associate's	516	10.8%
Bachelor's degree	1,592	33.4%
Graduate or professional degree	1,763	36.9%

Commute to work

Mean travel time to work: 29 min

Drove alone54.8%

Carpooled4.9%

Public transit9.0%

Walked1.9%

Bicycle0.0%

Worked from home27.9%

Other means1.5%

How workers get to work

	Count	Share
Drove alone	2,053	54.8%
Carpooled	185	4.9%
Public transit	337	9.0%
Walked	73	1.9%
Bicycle	0	0.0%
Worked from home	1,044	27.9%
Other means	56	1.5%

Travel time

	Count	Share
Under 15 min	801	29.6%
15 to 29 min	910	33.7%
30 to 44 min	382	14.1%
45 to 59 min	104	3.8%
60+ min	507	18.8%

Households

Average household size: 2.78
Poverty rate: 5.5% (403 of 7,350)

	Count	Share
Family households	2,050	77.8%
Nonfamily households	585	22.2%

Housing

Median year structure built: 1959

Occupancy

	Count	Share
Occupied	2,635	97.2%
Vacant	76	2.8%

Tenure (of occupied units)

	Count	Share
Owner-occupied	1,724	65.4%
Renter-occupied	911	34.6%

1-unit, detached58.2%

1-unit, attached11.8%

2 to 4 units23.5%

5 to 19 units5.1%

20 or more units1.1%

Mobile home & other0.2%

Units in structure

	Count	Share
1-unit, detached	1,579	58.2%
1-unit, attached	320	11.8%
2 to 4 units	638	23.5%
5 to 19 units	138	5.1%
20 or more units	31	1.1%
Mobile home & other	5	0.2%

Geography

Place GEOID: 0917520
Type (LSAD): 57
Land area: 2.15 sq mi
Water area: 0.12 sq mi
Center point: 41.0486, -73.5919