Housing data for Water Mill, NY

Water Mill, NY has an estimated 2,764 residents and 2,564 homes (US Census Bureau, 2020–2024 American Community Survey).

It is an unincorporated community in Suffolk County.

6.3% of households rent.

The median gross rent is $3,200 a month.

Its population grew measurably since 2015–2019 (+69.5%).

Figures last updated on .

Residents
2,764 (±556)
Housing units
2,564 (±382)
Households that rent
6.3%
Median gross rent
$3,200
Residents since 2015–2019
+69.5%

What stands out in Water Mill

Working from home: 37.5% (±15.2 points) in Water Mill, higher than in Suffolk County (12.0%).

Homes in buildings of 5 or more units: 0.0% (±2.8 points) in Water Mill, lower than in Suffolk County (8.4%).

Households that rent: 6.3% (±5.6 points) in Water Mill, lower than in Suffolk County (17.8%).

Homes built before 1980: 31.3% (±10.4 points) in Water Mill, lower than in Suffolk County (68.3%).

Housing in Water Mill at a glance

  • Median rent: $3,200 median gross rent a month (Small sample: wide margin of error)
  • Rent burden: 56.3% of renters pay 30% or more of income (Small sample: wide margin of error)
  • Renters and owners: 6.3% of households rent (Small sample: wide margin of error)
  • Income and affordability: $186,875 median household income (Small sample: wide margin of error)
  • Home values: $2,000,000 or more median home value
  • Homeowner costs: $4,000 or more median monthly cost with a mortgage
  • Property taxes: $10,000 or more median real estate taxes a year
  • Types of homes: 0.0% of homes are in buildings of 5 or more units
  • Bedrooms: 94.5% of homes have 3 or more bedrooms (Small sample: wide margin of error)
  • Age of homes: 31.3% of homes were built before 1980
  • Vacancy rate: 4.8% rental vacancy rate (Small sample: wide margin of error)
  • Heating fuel: 43.0% heat with fuel oil or kerosene
  • Commute and cars: 18.6 minutes average trip to work
  • Growth: +69.5% residents since 2015–2019
  • How long people stay: 14.5% moved in since 2020 (Small sample: wide margin of error)
  • Crowding and facilities: 0.0% of homes have more than 1 person per room (Small sample: wide margin of error)

Water Mill against Suffolk County, its state and the nation

Estimate (90% margin of error)
Water MillSuffolk CountyNew YorkUnited States
Residents2,764 (±556)1,530,146 (exact)19,852,366 (exact)334,922,499
Housing units2,564 (±382)580,772 (±234)8,585,241 (±652)143,775,355
Households that rent6.3% (±5.6 points)17.8% (±0.5 points)45.7% (±0.2 points)34.8%
Median gross rent$3,200 (±$1,340)$2,255 (±$27)$1,621 (±$7)$1,413
Median household income$186,875 (±$94,186)$130,686 (±$1,707)$85,974 (±$402)$80,734
Median home value$2,000,000 or more$578,400 (±$2,887)$423,800 (±$1,627)$332,700
Median real estate taxes (a year)$10,000 or more$10,000 or more$6,582 (±$21)$3,119
Built before 198031.3% (±10.4 points)68.3% (±0.7 points)73.9% (±0.2 points)49.7%
Average commute18.6 minutes (±4.9)31.1 minutes (±0.3)32.6 minutes (±0.1)26.4 minutes
Households with broadband85.3% (±15.6 points)93.2% (±0.3 points)90.8% (±0.1 points)91.0%
Median age of residents54.9 years (±6.3)41.7 years (±0.2)39.8 years (±0.1)38.9 years

Water Mill covers 10.6 square miles of land, about 261 residents per square mile (Census Bureau Gazetteer).

How Water Mill has changed since 2015–2019

2015–2019 and 2020–2024 American Community Survey 5-year estimates
2015–20192020–2024Amount of changeVerdict
Residents1,631 (±489)2,764 (±556)+69.5%Measurable increase
Housing units2,002 (±242)2,564 (±382)+28.1%Measurable increase
Median household income$155,278 (±$65,712)$186,875 (±$94,186)+20.3%No measurable change after inflation
Households that rent7.5% (±7.3 points)6.3% (±5.6 points)−1.2 percentage pointsNot a measurable change
Rental vacancy rate0.0% (±41.5 points)4.8% (±9.8 points)+4.8 percentage pointsNot 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.

Crime reported to police in Suffolk County

Water Mill has no police department of its own in the FBI’s figures, so this is the figure for Suffolk County as a whole.

In 2025, the police departments that report for Suffolk County recorded 6 violent and 99 property crimes per 100,000 residents.

A county-wide figure describes the whole county, not this place; crime varies from one community to the next.

ZIP codes in Water Mill

ZIP Code Tabulation Areas that cover this place (2020–2024 estimates)
ZIP codeShare of the ZIP’s land in this placeResidentsMedian gross rentMedian home valueMedian household income
1197674%2,952$3,250$2,000,000 or more$180,250

A ZIP code is a mail route rather than a boundary, so the Census Bureau publishes figures for ZIP Code Tabulation Areas built from census blocks; the share column says how much of each one’s land lies in this place.

Places near Water Mill

Nearest places with Census figures, by straight-line distance
PlaceDistanceMedian gross rentMedian home valueHouseholds that rent
Bridgehampton2.7 mi—$1,764,8007.2%
North Sea3.0 mi$3,063$1,128,00014.6%
Noyack3.9 mi$2,369$1,085,50018.1%
Village of Southampton4.2 mi$2,437$2,000,000 or more16.1%
Village of Sagaponack4.3 mi—$2,000,000 or more9.1%
Tuckahoe (community)4.6 mi$1,494$1,075,50037.4%
Shinnecock Reservation5.4 mi—$395,7006.0%
Shinnecock Hills5.8 mi—$1,375,0003.4%

HUD Fair Market Rent for Water Mill, fiscal year 2027

Nassau-Suffolk, NY HUD Metro FMR Area, dollars a month
Studio1 bedroom2 bedrooms3 bedrooms4 bedrooms
$1,964$2,285$2,689$3,458$3,671

HUD income limits for Water Mill, fiscal year 2026

Nassau-Suffolk, NY HUD Metro FMR Area, annual household income
Household sizeExtremely low (30%)Very low (50%)Low (80%)
1 person$34,550$57,550$89,700
2 people$39,450$65,750$102,500
3 people$44,400$73,950$115,300
4 people$49,300$82,150$128,100
5 people$53,250$88,750$138,350
6 people$57,200$95,300$148,600
7 people$61,150$101,900$158,850
8 people$65,100$108,450$169,100

These are the limits HUD sets for its housing programs in the Nassau-Suffolk, NY HUD Metro FMR Area, where HUD’s median family income for fiscal year 2026 is $164,300.

A program can use its own limits; tax-credit and local programs often do.

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

It lies inside the Town of Southampton, 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 Water Mill

What is the average home value in Water Mill, NY?

The Census Bureau publishes the median: $2,000,000 or more for owner-occupied homes in Water Mill (2020–2024 American Community Survey).

What is the average mortgage payment in Water Mill?

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

How much are property taxes in Water Mill?

The median real estate tax paid by homeowners in Water Mill, NY is $10,000 or more a year (2020–2024 American Community Survey).

How many homes are in Water Mill?

Water Mill, NY has an estimated 2,564 (±382) housing units, occupied and vacant (2020–2024 American Community Survey).

How old are most homes in Water Mill?

31.3% of homes in Water Mill, NY were built before 1980 (2020–2024 American Community Survey).

What is the most common way to heat a home in Water Mill?

Fuel oil or kerosene is the most common heating fuel in Water Mill, used by 43.0% of occupied homes (2020–2024 American Community Survey).

Is Water Mill growing?

In Water Mill, the number of residents went from 1,631 in 2015–2019 to 2,764 in 2020–2024 (+69.5%), a measurable increase.

What ZIP codes are in Water Mill?

The ZIP code that covers Water Mill is 11976.

What is the median rent in ZIP code 11976?

The median gross rent in ZIP Code Tabulation Area 11976 is $3,250 (±$748) a month (2020–2024 American Community Survey).

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 Water Mill CDP, New York (place:78575, in state:36).

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

The 2015–2019 figures are B01003_001E, B01003_001M, B25064_001E, B25064_001M from the 2019 release.

The API needs a free key.

Request a Census API key.

DP05_0001E, DP05_0001M, DP04_0001E, DP04_0001M, DP04_0047PE, DP04_0047PM, DP04_0134E, DP04_0134M, DP03_0062E, DP03_0062M, DP04_0089E, DP04_0089M

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.

Figures last updated on .

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