How long do people stay in their homes in Cos Cob, CT?

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

20.3% (±6.4 points) of households in Cos Cob, CT moved into their current home in 2020 or later (2020–2024 American Community Survey).

19.6% have lived in it since before 2000.

Figures last updated on November 12, 2026.

Moved in 2020 or later: 20.3% (±6.4 points)
Since before 2000: 19.6%

When households in Cos Cob moved in

Occupied housing units by year the householder moved in, 2020–2024
Moved in	Cos Cob	Western Connecticut Planning Region	Connecticut	United States
2023 or later	3.4% (±2.5 points)	4.0%	3.9%	4.6%
2020 to 2022	16.9% (±5.9 points)	19.5%	17.9%	20.2%
2010 to 2019	40.8% (±8.2 points)	38.4%	37.7%	39.6%
2000 to 2009	19.3% (±6.8 points)	17.0%	17.4%	16.4%
1990 to 1999	9.7% (±4.0 points)	10.3%	10.7%	9.6%
1989 or earlier	9.9% (±4.5 points)	10.9%	12.4%	9.5%

A high share of recent movers usually means more renting households and more turnover; a high share of long-time residents usually means more owners who have stayed.

In Cos Cob, the share of households that moved in since 2020 is not measurably different from Western Connecticut Planning Region (23.5%).

It is not measurably different from Connecticut (21.8%).

It is not measurably different from the national figure (24.8%).

Households that moved in since 2020 in places near Cos Cob

Nearest places with a published estimate, compared with Cos Cob
Place	Distance	Households that moved in since 2020	Compared with this place
Cos Cob	—	20.3% (±6.4 points)	—
Riverside	1.3 mi	17.4% (±3.7 points)	Not measurably different
Greenwich (community)	2.3 mi	22.6% (±4.3 points)	Not measurably different
Old Greenwich	2.3 mi	20.6% (±5.5 points)	Not measurably different
Stamford	3.2 mi	32.1% (±1.8 points)	Higher
Glenville	3.9 mi	21.6% (±9.9 points)	Not measurably different
Pemberwick	4.0 mi	13.7% (±7.7 points)	Not measurably different
Byram	4.6 mi	19.5% (±6.9 points)	Not measurably different
Village of Port Chester	5.0 mi	18.8% (±3.9 points)	Not measurably different

Nearby places with a measurably higher figure: Stamford, CT (32.1%).

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

Households that moved in since 2020 across Western Connecticut Planning Region, place by place

Rank	Place	Households that moved in since 2020
14	Inglenook	21.9% (±23.7 points)
15 (tie)	Noroton Heights	21.7% (±8.6 points)
15 (tie)	Staples	21.7% (±5.9 points)
17	Glenville	21.6% (±9.9 points)
18	Saugatuck	21.2% (±8.3 points)
19	Old Greenwich	20.6% (±5.5 points)
20	Cos Cob	20.3% (±6.4 points)
21	Old Hill	19.6% (±7.4 points)
22	Byram	19.5% (±6.9 points)
23	Route 7 Gateway	18.7% (±15.9 points)
24	Westport Village	18.2% (±6.8 points)
25	Ball Pond	17.5% (±9.5 points)
26	Riverside	17.4% (±3.7 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

How often do people move in Cos Cob?

20.3% of households in Cos Cob, CT moved into their home in 2020 or later (2020–2024 American Community Survey).

How many long-time residents does Cos Cob have?

19.6% of households in Cos Cob have lived in their home since 1999 or earlier.

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_0051PE, DP04_0051PM, DP04_0052PE, DP04_0052PM, DP04_0053PE, DP04_0053PM, DP04_0054PE, DP04_0054PM, DP04_0055PE, DP04_0055PM, DP04_0056PE, DP04_0056PM

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.