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Advertise here →Water Mill, NY · Houses & Market Data
Water Mill, New York houses and real estate market data.
Houses in Water Mill, NY (Suffolk County) — Census median home value $2,000,001, county listing prices up about 1.9% over the past year. Market data for Water Mill houses and the broader area.
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Water Mill, NY is in Suffolk County, New York — this guide covers houses in Water Mill and the whole local market: resale homes, condos, land, and new construction. The most recent Census estimate puts the population at 2,218, with a median household income of $158,250. Census data puts Water Mill houses at a median value of $2,000,001 (all owner-occupied homes); Suffolk County's current median listing price runs $937,000, up about 1.9% over the past year.
Info from government sites and builders may have provided source info.
Market overview
Water Mill housing market
Water Mill is in Suffolk County, New York. Manifest Census and county price-trend data provide baseline context for houses in Water Mill and the surrounding county market.
Median home value (Census ACS)
$2,000,001
Population (Census ACS)
2,218
Median household income
$158,250
County price trend (2025)
5.42% YoY
Population, income, and median home value from the project batch manifest (Census ACS 2023 5-year). County price trend from FHFA county HPI when present in the manifest row.
At a glance
Water Mill market snapshot
Population
2,218
County
Suffolk County
Median Household Income
$158,250
Median Home Value (city)
$2,000,001
Median Listing Price (Suffolk County)
$937,000
Median Gross Rent
$3,150/mo
Price Trend (YoY)
+1.9%
Market data compiled from public sources; deemed reliable but not guaranteed; verify independently. See About
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What makes Water Mill different
Home Value, By Source
The Census Bureau's American Community Survey (2023 5-year estimate) puts Water Mill's median home value — across all owner-occupied homes, not just recent sales — at $2,000,001. Separately, Suffolk County's current median listing price (via Realtor.com data, 2026-06-01) runs $937,000. These cover different geography (city vs. county) and different measures (assessed value vs. active listings), which is why we show both rather than picking one — full source list on our data sources page.
County Price Trend
Suffolk County's FHFA house price index shows a 5.42% annual change in 2025.
Population & Income
Water Mill has an estimated population of 2,218 and a median household income of $158,250, per the Census Bureau's American Community Survey (2023 5-year estimate).
Affordability Snapshot
Water Mill's Census-reported median home value works out to about 12.6x the area's median household income, and median gross rent runs roughly 24% of that same income on an annualized basis. Housing economists commonly flag a price-to-income ratio above 4x as historically elevated -- useful context, not a personal affordability verdict.
Nearby
Places around Water Mill
County guide: Suffolk County — cities, market context, and local resources for the county that includes Water Mill.
USAHouses.com also helps visitors looking in nearby Suffolk County and other New York communities. Some locations may not yet have dedicated pages, but many licensed professionals in this region assist surrounding communities.
Nearby communities include Bridgehampton, North Sea, Noyack, Southampton, Sagaponack, Tuckahoe, Wainscott, Shinnecock Hills, Sag Harbor, North Haven, East Hampton, New Suffolk, East Hampton North, Shelter Island Heights, Northwest Harbor, Shelter Island.
Bridgehampton market data
Nearby city · ~2.7 mi
North Sea market data
Nearby city · ~3.0 mi
Noyack market data
Nearby city · ~3.9 mi
Southampton market data
Nearby city · ~4.2 mi
Sagaponack market data
Nearby city · ~4.3 mi
Tuckahoe market data
Nearby city · ~4.6 mi
Wainscott market data
Nearby city · ~5.5 mi
Shinnecock Hills market data
Nearby city · ~5.8 mi
Sag Harbor market data
Nearby city · ~5.9 mi
North Haven market data
Nearby city · ~7.2 mi
East Hampton market data
Nearby city · ~8.3 mi
New Suffolk market data
Nearby city · ~8.4 mi
East Hampton North market data
Nearby city · ~9.1 mi
Shelter Island Heights market data
Nearby city · ~9.2 mi
Northwest Harbor market data
Nearby city · ~9.3 mi
Shelter Island market data
Nearby city · ~9.6 mi
More New York cities with market guides: Yonkers, Syracuse, Albany, New Rochelle, Cheektowaga, Mount Vernon, Schenectady, Utica.
Yonkers market data
Same-state city guide
Syracuse market data
Same-state city guide
Albany market data
Same-state city guide
New Rochelle market data
Same-state city guide
Cheektowaga market data
Same-state city guide
Mount Vernon market data
Same-state city guide
Schenectady market data
Same-state city guide
Utica market data
Same-state city guide
Adjacent-county Census places with USAHouses.com pages: Farmingdale (~58.8 mi), Woodbury (~59.0 mi), Laurel Hollow (~59.0 mi), Old Bethpage (~59.1 mi), South Farmingdale (~59.1 mi), East Massapequa (~59.3 mi), Plainview (~59.5 mi), Massapequa Park (~59.9 mi), Cove Neck (~59.9 mi), North Massapequa (~60.4 mi), Oyster Bay Cove (~60.5 mi), Plainedge (~60.5 mi), Bethpage (~60.5 mi), Syosset (~60.6 mi), Centre Island (~61.2 mi), Massapequa (~61.2 mi).
New construction: New homes near Water Mill (New York City) · New York new construction.
Census & home facts
Water Mill data from published sources
Population (ACS 2023)
2,218
Median home value (ACS 2023)
$2,000,001
Median household income (ACS 2023)
$158,250
Median gross rent (ACS 2023)
$3,150
County FHFA annual change (2025)
5.42%
County median listing price (FRED/Realtor.com) (2026-06-01)
$937,000
Census place type
CDP
County
Suffolk County
Land area (Census Gazetteer 2024)
10.58 sq mi
Census GEOID
3678575
Census ACS, FHFA, and FRED figures are labeled with the year present in existing CSVs. Subject to change / confirm locally.
NewUSAHouses.com communities
Closest verified new-home communities near Water Mill
Availability and pricing are controlled by the builder and may change; confirm with the builder.
Willows at Brookfield ↗
Toll Brothers · Brookfield, Connecticut · ~66.6 mi · from $599,995
Regency at Rivington 55+ ↗
Toll Brothers · Danbury, Connecticut · ~68.8 mi · from $912,995
Rivington Landing ↗
Toll Brothers · Danbury, Connecticut · ~68.9 mi · from $489,000
Manhasset Crest ↗
Toll Brothers · Manhasset, New York · ~69.3 mi · from $3,098,000
Rivington Meadows 55+ ↗
Toll Brothers · Danbury, Connecticut · ~69.5 mi · from $787,995
Local life
Life in Water Mill
Schools
BRENTWOOD UNION FREE SCHOOL DISTRICT — 17 schools, 18,323 students enrolled, per the U.S. Department of Education's Common Core of Data. Suffolk addresses may be served by BRENTWOOD UNION FREE SCHOOL DISTRICT, but attendance zones vary by street — confirm assigned schools with the district before making a move.
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Common questions
Water Mill FAQ
What are houses worth in Water Mill, NY?
The Census Bureau's American Community Survey puts the median value of houses in Water Mill at $2,000,001. Suffolk County's current median listing price runs $937,000, up about 1.9% over the past year.
How much do houses cost in Water Mill, NY?
For owner-occupied houses in Water Mill, Census ACS data shows a median value of $2,000,001. Active listing prices in Suffolk County may differ — see the market snapshot above.
What types of houses are in Water Mill, NY?
Water Mill houses include resale single-family homes, condos, mobile homes, and small multi-unit buildings, plus new construction in surrounding Suffolk County communities where builders are active. The housing-stock section below uses Census ACS structure counts when available for this city.
What is the population of Water Mill, NY?
The U.S. Census Bureau's American Community Survey (2023 5-year estimate) puts Water Mill's population at approximately 2,218.
What's the median rent in Water Mill, NY?
The Census ACS estimates median gross rent in Water Mill at approximately $3,150 per month.
What is the median household income in Water Mill, NY?
Census ACS data puts the median household income in Water Mill at approximately $158,250.
Is the Water Mill housing market growing?
Suffolk County's FHFA house price index shows a 5.42% annual change in 2025.
Is Water Mill, NY affordable relative to income?
Census ACS data puts Water Mill's median home value at about 12.6 times the median household income, with median gross rent equal to roughly 24% of that income annually. This is a general benchmark, not a personal pre-qualification -- your own income, debt, and down payment determine what you can actually afford.
What school district serves Water Mill, NY?
Manifest and public school-directory data suggest BRENTWOOD UNION FREE SCHOOL DISTRICT for many Water Mill addresses, but attendance zones vary by street — verify your assigned schools with the district before making a move.
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