Northwest Harbor, NY · Houses & Market Data

Northwest Harbor, New York houses and real estate market data.

Houses in Northwest Harbor, NY (Suffolk County) — Census median home value $1,328,200, county listing prices up about 1.9% over the past year. Market data for Northwest Harbor houses and the broader area.

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Northwest Harbor, NY is in Suffolk County, New York — this guide covers houses in Northwest Harbor and the whole local market: resale homes, condos, land, and new construction. The most recent Census estimate puts the population at 4,966, with a median household income of $129,653. Census data puts Northwest Harbor houses at a median value of $1,328,200 (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

Northwest Harbor housing market

Northwest Harbor is in Suffolk County, New York. Manifest Census and county price-trend data provide baseline context for houses in Northwest Harbor and the surrounding county market.

Median home value (Census ACS)

$1,328,200

Population (Census ACS)

4,966

Median household income

$129,653

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

Northwest Harbor market snapshot

Population

4,966

County

Suffolk County

Median Household Income

$129,653

Median Home Value (city)

$1,328,200

Median Listing Price (Suffolk County)

$937,000

Median Gross Rent

$1,818/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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Why Northwest Harbor

What makes Northwest Harbor different

Home Value, By Source

The Census Bureau's American Community Survey (2023 5-year estimate) puts Northwest Harbor's median home value — across all owner-occupied homes, not just recent sales — at $1,328,200. 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

Northwest Harbor has an estimated population of 4,966 and a median household income of $129,653, per the Census Bureau's American Community Survey (2023 5-year estimate).

Affordability Snapshot

Northwest Harbor's Census-reported median home value works out to about 10.2x the area's median household income, and median gross rent runs roughly 17% 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 Northwest Harbor

County guide: Suffolk County — cities, market context, and local resources for the county that includes Northwest Harbor.

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 East Hampton North, Springs, Sag Harbor, Wainscott, East Hampton, Shelter Island, North Haven, Amagansett, Sagaponack, Bridgehampton, Noyack, Shelter Island Heights, Napeague, Dering Harbor, Water Mill, Orient.

More New York cities with market guides: Yonkers, Syracuse, Albany, New Rochelle, Cheektowaga, Mount Vernon, Schenectady, Utica.

Adjacent-county Census places with USAHouses.com pages: Laurel Hollow (~66.5 mi), Woodbury (~66.7 mi), Farmingdale (~66.9 mi), Old Bethpage (~67.2 mi), Cove Neck (~67.2 mi), Plainview (~67.4 mi), South Farmingdale (~67.4 mi), East Massapequa (~67.7 mi), Oyster Bay Cove (~67.9 mi), Massapequa Park (~68.2 mi), Syosset (~68.3 mi), Centre Island (~68.4 mi), Bethpage (~68.6 mi), Plainedge (~68.6 mi), North Massapequa (~68.7 mi), Oyster Bay (~69.1 mi).

New construction: New homes near Northwest Harbor (New York City) · New York new construction.

Census & home facts

Northwest Harbor data from published sources

Population (ACS 2023)

4,966

Median home value (ACS 2023)

$1,328,200

Median household income (ACS 2023)

$129,653

Median gross rent (ACS 2023)

$1,818

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)

14.48 sq mi

Census GEOID

3653852

Census ACS, FHFA, and FRED figures are labeled with the year present in existing CSVs. Subject to change / confirm locally.

Local life

Life in Northwest Harbor

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

Northwest Harbor FAQ

What are houses worth in Northwest Harbor, NY?

The Census Bureau's American Community Survey puts the median value of houses in Northwest Harbor at $1,328,200. Suffolk County's current median listing price runs $937,000, up about 1.9% over the past year.

How much do houses cost in Northwest Harbor, NY?

For owner-occupied houses in Northwest Harbor, Census ACS data shows a median value of $1,328,200. Active listing prices in Suffolk County may differ — see the market snapshot above.

What types of houses are in Northwest Harbor, NY?

Northwest Harbor 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 Northwest Harbor, NY?

The U.S. Census Bureau's American Community Survey (2023 5-year estimate) puts Northwest Harbor's population at approximately 4,966.

What's the median rent in Northwest Harbor, NY?

The Census ACS estimates median gross rent in Northwest Harbor at approximately $1,818 per month.

What is the median household income in Northwest Harbor, NY?

Census ACS data puts the median household income in Northwest Harbor at approximately $129,653.

Is the Northwest Harbor housing market growing?

Suffolk County's FHFA house price index shows a 5.42% annual change in 2025.

Is Northwest Harbor, NY affordable relative to income?

Census ACS data puts Northwest Harbor's median home value at about 10.2 times the median household income, with median gross rent equal to roughly 17% 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 Northwest Harbor, NY?

Manifest and public school-directory data suggest BRENTWOOD UNION FREE SCHOOL DISTRICT for many Northwest Harbor addresses, but attendance zones vary by street — verify your assigned schools with the district before making a move.

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