What percentage of people rent in Cos Cob, CT?

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

33.3% (±7.9 points) of the occupied homes in Cos Cob, CT are rented (2020–2024 American Community Survey).

That is 914 renting households against 1,833 that own their home.

In Cos Cob, the share of households that rent went from 31.5% in 2015–2019 to 33.3% in 2020–2024 (+1.8 percentage points), not a measurable change.

Figures last updated on November 12, 2026.

Households that rent: 33.3% (±7.9 points)
Renting households: 914 (±256)
Median renter income: $116,429 (±$19,883)

Who rents and who owns in Cos Cob

Tenure, estimate (90% margin of error)
	Cos Cob	Western Connecticut Planning Region	Connecticut	United States
Renter-occupied share	33.3% (±7.9 points)	33.6% (±0.7 points)	33.5% (±0.3 points)	34.8%
Renting households	914 (±256)	79,060 (±1,769)	481,018 (±4,678)	45,017,354
Owning households	1,833 (±272)	156,319 (±1,727)	952,989 (±5,585)	84,210,142
Average renter household size	2.8 (±0.3)	2.3 (±0.0)	2.1 (±0.0)	2.3
Average owner household size	2.7 (±0.2)	2.8 (±0.0)	2.6 (±0.0)	2.6
Median renter household income	$116,429 (±$19,883)	$75,585 (±$2,371)	$52,072 (±$906)	$52,966
Median owner household income	$234,648 (±$42,875)	$168,617 (±$3,790)	$125,125 (±$969)	$100,009

In Cos Cob, the renter share is not measurably different from Western Connecticut Planning Region (33.6%).

It is not measurably different from Connecticut (33.5%).

It is not measurably different from the national figure (34.8%).

In Western Connecticut Planning Region, Cos Cob ranks 8 of 33 places with a published estimate, from highest to lowest renter share.

Statewide, it ranks 40 of 132.

Rankings use the estimates alone; where margins of error overlap, neighboring ranks may not truly differ.

How renting in Cos Cob has changed since 2015–2019

2015–2019 and 2020–2024 American Community Survey 5-year estimates
	2015–2019	2020–2024	Amount of change	Verdict
Households that rent	31.5% (±5.7 points)	33.3% (±7.9 points)	+1.8 percentage points	Not a measurable change
Median gross rent	$1,979 (±$243)	$3,067 (±$701)	+55.0%	No measurable change after inflation
Median household income	$149,375 (±$24,590)	$190,481 (±$30,784)	+27.5%	No measurable change after inflation

The Census Bureau publishes 2015–2019 dollars in 2019 dollars and 2020–2024 dollars in 2024 dollars.

Prices (the CPI-U, US Bureau of Labor Statistics) rose 22.7% between 2019 and 2024, so a dollar figure’s verdict compares the two after raising the earlier one by that much, using the Census Bureau’s test for a difference.

The two periods do not overlap, as the Census Bureau recommends for 5-year estimates.

Households that rent in places near Cos Cob

Nearest places with a published estimate, compared with Cos Cob
Place	Distance	Households that rent	Compared with this place
Cos Cob	—	33.3% (±7.9 points)	—
Riverside	1.3 mi	19.4% (±4.7 points)	Lower
Greenwich (community)	2.3 mi	45.9% (±4.5 points)	Higher
Old Greenwich	2.3 mi	13.7% (±3.9 points)	Lower
Stamford	3.2 mi	51.2% (±1.8 points)	Higher
Glenville	3.9 mi	27.4% (±10.2 points)	Not measurably different
Pemberwick	4.0 mi	26.7% (±8.9 points)	Not measurably different
Byram	4.6 mi	53.9% (±10.9 points)	Higher
Village of Port Chester	5.0 mi	53.5% (±4.0 points)	Higher

Nearby places with a measurably lower figure: Riverside, CT (19.4%), Old Greenwich, CT (13.7%).

Nearby places with a measurably higher figure: Greenwich (community), CT (45.9%), Stamford, CT (51.2%), Byram, CT (53.9%).

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

Households that rent across Western Connecticut Planning Region, place by place

Rank	Place	Households that rent
2	Route 7 Gateway	50.7% (±15.4 points)
3	Greenwich (community)	45.9% (±4.5 points)
4	Wilton Center	41.0% (±8.9 points)
5	New Milford (community)	40.3% (±6.8 points)
6	Bethel (community)	36.5% (±5.7 points)
7	New Canaan (community)	33.8% (±7.1 points)
8	Cos Cob	33.3% (±7.9 points)
9	Darien Downtown	31.5% (±12.7 points)
10	Noroton	28.5% (±8.1 points)
11	Ridgefield (community)	28.1% (±6.9 points)
12	Glenville	27.4% (±10.2 points)
13	Pemberwick	26.7% (±8.9 points)
14	Noroton Heights	24.1% (±10.7 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), compared with 2015–2019.

Margins of error are at the 90% confidence level.

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Questions about Cos Cob

How many renters are there in Cos Cob?

Cos Cob has an estimated 914 (±256) renting households, 33.3% of its occupied homes (2020–2024 American Community Survey).

Is renting growing in Cos Cob?

In Cos Cob, the share of households that rent went from 31.5% in 2015–2019 to 33.3% in 2020–2024 (+1.8 percentage points), not a measurable change.

How big are renting households in Cos Cob?

A renting household in Cos Cob has 2.8 people on average, against 2.7 in an owned home.

How much do renters earn in Cos Cob?

The median renting household in Cos Cob, CT has an income of $116,429 (±$19,883) a year, against $234,648 for households that own their home.

Sources

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) and detailed tables (acs/acs5) 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 2015–2019 figures are DP04_0047PE, DP04_0047PM, B25064_001E, B25064_001M, B19013_001E, B19013_001M from the 2019 release.

The API needs a free key.

Request a Census API key.

DP04_0047PE, DP04_0047PM, DP04_0047E, DP04_0047M, DP04_0046E, DP04_0046M, DP04_0049E, DP04_0049M, DP04_0048E, DP04_0048M, B25119_003E, B25119_003M, B25119_002E, B25119_002M

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.