How much do homeowners pay a month in Cos Cob, CT?

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

Homeowners with a mortgage in Cos Cob, CT pay a median of $4,000 or more a month in selected owner costs (2020–2024 American Community Survey).

Owners without a mortgage pay $1,246 (±$97).

67.5% of owned homes carry a mortgage.

Figures last updated on November 12, 2026.

With a mortgage: $4,000 or more
Without a mortgage: $1,246 (±$97)
Owned with a mortgage: 67.5%

Monthly owner costs in Cos Cob

Median selected monthly owner costs, estimate (90% margin of error)
	Cos Cob	Western Connecticut Planning Region	Connecticut	United States
With a mortgage	$4,000 or more	$3,494 (±$44)	$2,429 (±$11)	$1,963
Without a mortgage	$1,246 (±$97)	$1,431 (±$31)	$1,071 (±$7)	$638
Owned homes with a mortgage	67.5% (±9.1 points)	67.1% (±0.9 points)	64.6% (±0.4 points)	60.6%
Median real estate taxes (a year)	$8,168 (±$752)	$9,295 (±$98)	$6,643 (±$25)	$3,119

Selected monthly owner costs are the mortgage payment, property taxes, insurance, utilities, fuels and any condominium or mobile-home fees.

How owner costs in Cos Cob have changed since 2015–2019

2015–2019 and 2020–2024 American Community Survey 5-year estimates
	2015–2019	2020–2024	Amount of change	Verdict
Median real estate taxes	$7,984 (±$630)	$8,168 (±$752)	+2.3%	Down after inflation
Median home value	$1,055,400 (±$61,052)	$1,210,400 (±$136,068)	+14.7%	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.

Median monthly cost with a mortgage in places near Cos Cob

Nearest places with a published estimate, compared with Cos Cob
Place	Distance	Median monthly cost with a mortgage	Compared with this place
Cos Cob	—	$4,000 or more	—
Riverside	1.3 mi	$4,000 or more	—
Greenwich (community)	2.3 mi	$4,000 or more	—
Old Greenwich	2.3 mi	$4,000 or more	—
Stamford	3.2 mi	$3,460 (±$86)	—
Glenville	3.9 mi	$4,000 or more	—
Pemberwick	4.0 mi	$3,278 (±$552)	—
Byram	4.6 mi	$3,596 (±$693)	—
Village of Port Chester	5.0 mi	$3,885 (±$380)	—

None of the nearby places differs measurably from this one on this figure.

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

Median monthly cost with a mortgage across Western Connecticut Planning Region, place by place

Rank	Place	Median monthly cost with a mortgage
1 (tie)	Coleytown	$4,000 or more
1 (tie)	Compo	$4,000 or more
1 (tie)	Cos Cob	$4,000 or more
1 (tie)	Darien Downtown	$4,000 or more
1 (tie)	Glenville	$4,000 or more
1 (tie)	Greens Farms	$4,000 or more
1 (tie)	Greenwich (community)	$4,000 or more
1 (tie)	New Canaan (community)	$4,000 or more
1 (tie)	Noroton	$4,000 or more

Showing 9 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.

What you can do on Seayora in Cos Cob

One account for renting, owning, managing and fixing homes, with these figures beside you.

Own or manage a rental?

List it, sign the lease and collect rent online, with the figures for Cos Cob beside you.

Create a landlord account · See what landlords get

Looking for a place to rent?

Browse homes for rent near Cos Cob, save the ones you like and apply online.

Browse rentals · Create a renter account

Do repairs, renovations or maintenance?

Get found by owners and renters near Cos Cob, and send estimates and invoices from your phone.

Join as a pro · Find a pro

Questions about Cos Cob

What is the average mortgage payment in Cos Cob?

The Census Bureau publishes total owner costs rather than the mortgage alone: the median for owners with a mortgage in Cos Cob, CT is $4,000 or more a month, including taxes, insurance and utilities.

How much does it cost to own a paid-off home in Cos Cob?

Owners without a mortgage in Cos Cob pay a median of $1,246 (±$97) a month in taxes, insurance, utilities and fees.

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 B25088_002E, B25088_002M, B25103_001E, B25103_001M, B25077_001E, B25077_001M from the 2019 release.

The API needs a free key.

Request a Census API key.

DP04_0101E, DP04_0101M, DP04_0109E, DP04_0109M, DP04_0091PE, DP04_0091PM, B25103_001E, B25103_001M

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.