What is the median rent in Cos Cob, CT?

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

The median gross rent in Cos Cob, CT is $3,067 (±$701) a month, according to the US Census Bureau’s 2020–2024 American Community Survey.

That is across 914 rented homes; gross rent is the contract rent plus the utilities and fuels a renter pays separately.

In Cos Cob, the median gross rent went from $1,979 in 2015–2019 to $3,067 in 2020–2024 (+55.0%).

Prices (CPI-U) rose 22.7% over the same years; the change is not measurably different from the rise in prices.

Figures last updated on November 12, 2026.

Median gross rent: $3,067 (±$701)
Rented homes: 914 (±256)
$2,000 or more: 81.1%
Since 2015–2019: +55.0%

How much rent costs in Cos Cob

Share of rented homes in each gross-rent range, 2020–2024
Monthly gross rent	Cos Cob	Western Connecticut Planning Region	Connecticut	United States
Less than $500	0.0% (±4.5 points)	6.2%	7.8%	6.3%
$500 to $999	0.5% (±0.8 points)	6.1%	12.5%	20.2%
$1,000 to $1,499	14.9% (±14.6 points)	12.6%	30.4%	28.1%
$1,500 to $1,999	3.4% (±4.2 points)	20.6%	25.9%	21.1%
$2,000 to $2,499	22.1% (±12.7 points)	20.4%	12.0%	12.0%
$2,500 to $2,999	7.4% (±5.8 points)	14.0%	5.2%	5.5%
$3,000 or more	51.6% (±13.9 points)	20.1%	6.1%	6.8%

The most common range is $3,000 or more, paid by 51.6% of renting households.

81.1% of rented homes in Cos Cob cost $2,000 or more a month.

Cos Cob against Western Connecticut Planning Region, its state and the nation

Estimate (90% margin of error)
	Cos Cob	Western Connecticut Planning Region	Connecticut	United States
Median gross rent	$3,067 (±$701)	$2,110 (±$34)	$1,488 (±$10)	$1,413
Rented homes paying rent	914 (±256)	76,228 (±1,754)	462,698 (±4,638)	42,849,984

In Cos Cob, median gross rent is higher than in Western Connecticut Planning Region ($2,110).

It is also higher than in Connecticut ($1,488).

It is higher than the national figure ($1,413).

In Western Connecticut Planning Region, Cos Cob ranks 11 of 24 places with a published estimate, from highest to lowest median gross rent.

Statewide, it ranks 12 of 115.

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

How rent 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
Median gross rent	$1,979 (±$243)	$3,067 (±$701)	+55.0%	No measurable change after inflation
Households that rent	31.5% (±5.7 points)	33.3% (±7.9 points)	+1.8 percentage points	Not a measurable change
Rental vacancy rate	1.0% (±1.6 points)	0.0% (±4.5 points)	−1.0 percentage points	Not a measurable change

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.

Median gross rent in places near Cos Cob

Nearest places with a published estimate, compared with Cos Cob
Place	Distance	Median gross rent	Compared with this place
Cos Cob	—	$3,067 (±$701)	—
Riverside	1.3 mi	$3,500 or more	—
Greenwich (community)	2.3 mi	$2,082 (±$349)	Lower
Old Greenwich	2.3 mi	$3,500 or more	—
Stamford	3.2 mi	$2,276 (±$58)	Lower
Glenville	3.9 mi	$3,466 (±$580)	Not measurably different
Byram	4.6 mi	$2,413 (±$267)	Not measurably different
Village of Port Chester	5.0 mi	$2,028 (±$122)	Lower
Village of Rye Brook	5.1 mi	$2,593 (±$260)	Not measurably different

Nearby places with a measurably lower figure: Greenwich (community), CT ($2,082), Stamford, CT ($2,276), Village of Port Chester, NY ($2,028).

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

Median gross rent across Western Connecticut Planning Region, place by place

Rank	Place	Median gross rent
1 (tie)	Riverside	$3,500 or more
6	Glenville	$3,466 (±$580)
7	New Canaan (community)	$3,425 (±$462)
8	Georgetown	$3,359 (±$1,733)
9	South Wilton	$3,313 (±$3,085)
10	Westport Village	$3,301 (±$257)
11	Cos Cob	$3,067 (±$701)
12	Darien Downtown	$2,728 (±$1,238)
13	Byram	$2,413 (±$267)
14	Staples	$2,328 (±$387)
15	Saugatuck	$2,213 (±$219)
16	Greenwich (community)	$2,082 (±$349)
17	Noroton Heights	$2,018 (±$494)

Showing 13 of 24 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

What is the average rent in Cos Cob, CT?

The Census Bureau publishes the median rather than the average: the median gross rent in Cos Cob is $3,067 (±$701) a month (2020–2024 American Community Survey), so half of renting households pay less and half pay more.

How much has rent gone up in Cos Cob?

In Cos Cob, the median gross rent went from $1,979 in 2015–2019 to $3,067 in 2020–2024 (+55.0%).

Prices (CPI-U) rose 22.7% over the same years; the change is not measurably different from the rise in prices.

How many rentals in Cos Cob cost more than $2,000 a month?

81.1% of rented homes in Cos Cob have a gross rent of $2,000 or more a month, and 0.0% cost less than $500.

Is rent in Cos Cob higher than in Western Connecticut Planning Region?

In Cos Cob, median gross rent is higher than in Western Connecticut Planning Region ($2,110).

It is also higher than in Connecticut ($1,488).

It is higher than the national figure ($1,413).

Is this the rent for an apartment listed today?

No: these are rents households reported paying across 2020–2024, not asking rents for vacant homes, which usually run higher.

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) 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 B25064_001E, B25064_001M, DP04_0047PE, DP04_0047PM, DP04_0005E, DP04_0005M from the 2019 release.

The API needs a free key.

Request a Census API key.

DP04_0134E, DP04_0134M, DP04_0126E, DP04_0126M, DP04_0127PE, DP04_0127PM, DP04_0128PE, DP04_0128PM, DP04_0129PE, DP04_0129PM, DP04_0130PE, DP04_0130PM, DP04_0131PE, DP04_0131PM, DP04_0132PE, DP04_0132PM, DP04_0133PE, DP04_0133PM

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.