Demographics in Cos Cob, CT

Population, age, race, ethnicity, and household statistics — 2023 ACS Data

Where is Cos Cob?

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Population

Source: U.S. Census Bureau ACS (2023)

Total Population

7,354

Male

3,573

48.6%

Female

3,781

51.4%

Median Age

39.3

Age Distribution

Source: U.S. Census Bureau ACS (2023)

Race & Ethnicity

Source: U.S. Census Bureau ACS (2023)
White
71.9%
Black
2.9%
Hispanic
14.2%
Asian
5.4%
Two or More
12.6%
Other
6.9%

Education & Household

Source: U.S. Census Bureau ACS (2023)

Bachelor's or Higher

45.6%

High School or Higher

55.4%

Foreign Born

25.2%

Veterans

2.1%

Married

48.7%

Avg Household Size

2.8

Marital Status by Age

Source: U.S. Census Bureau ACS (2023)

Cos Cob, CT has a population of 7,354 with a median age of 39.3. The racial makeup is 71.9% White, 14.2% Hispanic, 2.9% Black, 5.4% Asian. About 45.6% of residents hold a bachelor's degree or higher. The foreign-born population is 25.2%.