How many bedrooms do homes in Cos Cob, CT have?

Name: Bedrooms in Cos Cob, CT, 2020–2024
Creator: US Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

In Cos Cob, CT, 6.9% of homes are studios or one-bedrooms and 76.9% have three or more bedrooms (2020–2024 American Community Survey).

The most common size is 3 bedrooms, 38.0% of homes.

Figures last updated on November 12, 2026.

Studio or 1 bedroom: 6.9%
3 or more bedrooms: 76.9% (±12.3 points)
Most common: 3 bedrooms

Homes in Cos Cob by bedroom count

Housing units by bedrooms, 2020–2024
Bedrooms	Cos Cob	Western Connecticut Planning Region	Connecticut	United States
No bedroom (studio)	0.0% (±1.5 points)	3.4%	2.8%	2.9%
1 bedroom	6.9% (±3.3 points)	13.3%	12.7%	10.9%
2 bedrooms	16.3% (±5.2 points)	23.0%	26.5%	25.0%
3 bedrooms	38.0% (±7.4 points)	28.2%	35.9%	38.7%
4 bedrooms	27.2% (±8.5 points)	22.0%	17.4%	17.5%
5 or more bedrooms	11.7% (±4.9 points)	10.1%	4.7%	4.9%

In Cos Cob, the share of homes with three or more bedrooms is higher than in Western Connecticut Planning Region (60.3%).

It is also higher than in Connecticut (58.0%).

It is higher than the national figure (61.1%).

Homes with 3 or more bedrooms in places near Cos Cob

Nearest places with a published estimate, compared with Cos Cob
Place	Distance	Homes with 3 or more bedrooms	Compared with this place
Cos Cob	—	76.9% (±12.3 points)	—
Riverside	1.3 mi	80.8% (±9.3 points)	Not measurably different
Greenwich (community)	2.3 mi	53.0% (±6.0 points)	Lower
Old Greenwich	2.3 mi	85.5% (±10.2 points)	Not measurably different
Stamford	3.2 mi	42.2% (±1.7 points)	Lower
Glenville	3.9 mi	67.1% (±15.1 points)	Not measurably different
Pemberwick	4.0 mi	61.9% (±14.9 points)	Not measurably different
Byram	4.6 mi	53.0% (±12.5 points)	Lower
Village of Port Chester	5.0 mi	38.3% (±4.0 points)	Lower

Nearby places with a measurably lower figure: Greenwich (community), CT (53.0%), Stamford, CT (42.2%), Byram, CT (53.0%).

Distance is measured in a straight line between the Census Bureau’s internal points for each place.

Homes with 3 or more bedrooms across Western Connecticut Planning Region, place by place

Rank	Place	Homes with 3 or more bedrooms
11	Saugatuck	83.2% (±14.8 points)
12	Noroton Heights	81.2% (±14.9 points)
13	Riverside	80.8% (±9.3 points)
14 (tie)	Lakes East	80.0% (±17.0 points)
14 (tie)	Staples	80.0% (±13.0 points)
16	Westport Village	77.3% (±12.3 points)
17	Cos Cob	76.9% (±12.3 points)
18	Noroton	74.8% (±10.8 points)
19	Sandy Hook	73.6% (±9.0 points)
20	Ball Pond	71.8% (±12.6 points)
21	New Canaan (community)	71.2% (±11.0 points)
22	Glenville	67.1% (±15.1 points)
23	Inglenook	65.6% (±37.3 points)

Showing 13 of 33 places in Western Connecticut Planning Region, ranked from highest to lowest.

Cos Cob is a census-designated place: an unincorporated community the Census Bureau draws for statistics, with no municipal government of its own.

It lies inside Greenwich, whose figures include it.

Survey years: 2020–2024 (American Community Survey 5-year estimates).

Margins of error are at the 90% confidence level.

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Questions about Cos Cob

What is the most common home size in Cos Cob?

The most common size is 3 bedrooms, 38.0% of homes in Cos Cob, CT.

How many studios and one-bedroom homes are in Cos Cob?

6.9% of homes in Cos Cob have one bedroom or none.

Sources

Selected Housing Characteristics (DP04), 2020–2024 ACS 5-year estimates — Cos Cob CDP, Connecticut

To check these figures in the Census Bureau’s own API, request the variables below from the 2024 ACS 5-year data profile (acs/acs5/profile) for Cos Cob CDP, Connecticut (place:17520, in state:09).

Each estimate (E or PE) has a margin of error beside it (M or PM).

The API needs a free key.

Request a Census API key.

DP04_0039PE, DP04_0039PM, DP04_0040PE, DP04_0040PM, DP04_0041PE, DP04_0041PM, DP04_0042PE, DP04_0042PM, DP04_0043PE, DP04_0043PM, DP04_0044PE, DP04_0044PM

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Figures are published by the US Census Bureau, HUD, the Bureau of Labor Statistics and the FBI; Seayora reproduces them and does not adjust them, except where a sentence says it compares dollar figures after inflation. They describe the whole place, not any one building or street, and are not an appraisal, a rent determination, a tax bill, a safety rating or legal advice.