Open
Local agent spot
This featured-agent spot is open for a licensed local real estate professional in New York.
Advertise here →Harbor Isle, NY · Houses & Market Data
Harbor Isle, New York houses and real estate market data.
Houses in Harbor Isle, NY (Nassau County) — Census median home value $606,500, county listing prices up about 6.7% over the past year. Market data for Harbor Isle houses and the broader area.
FEATURED LISTING: WATERFRONT LAKE HOME FOR SALE
Clearlake Oaks Canal-Front Oasis
$425,000 • 3 Beds • 2 Baths • 1,204 Sq Ft
554 Keys, Clearlake Oaks, CA 95423
Luxury Living Lake Lifestyle – Deep Water Access to Clear Lake: PAID-OFF SOLAR • 10-Ft Concrete Seawall • Double Boat Lifts & Private Dock • Hot Tub • Mini-Split HVAC • Close to SF Bay / Wine Country • Cleanest Air in America (Lake County CA) • Spacious Patio and Deck • Open Floor Plan • RV/Boat Parking • Want the Boats? • Make Offer ASAP This Lake Home For Sale in California won't last!
*Listed by Scott Brown, eXp Realty of California, Inc. DRE #01956840. Inquiries delivered directly to listing agent. Search.USAHouses.com*
Contact Agent Direct:
Scott Brown - eXp Realty
Scott@USAHouses.com
Call/Text (707) 474-8855
Click Anywhere on Ad for More Info / Listing Page
Harbor Isle, NY is in Nassau County, New York — this guide covers houses in Harbor Isle and the whole local market: resale homes, condos, land, and new construction. The most recent Census estimate puts the population at 1,401, with a median household income of $124,681. Census data puts Harbor Isle houses at a median value of $606,500 (all owner-occupied homes); Nassau County's current median listing price runs $959,250, up about 6.7% over the past year.
Info from government sites and builders may have provided source info.
Market overview
Harbor Isle housing market
Harbor Isle is in Nassau County, New York. Manifest Census and county price-trend data provide baseline context for houses in Harbor Isle and the surrounding county market.
Median home value (Census ACS)
$606,500
Population (Census ACS)
1,401
Median household income
$124,681
County price trend (2025)
6.97% 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
Harbor Isle market snapshot
Population
1,401
County
Nassau County
Median Household Income
$124,681
Median Home Value (city)
$606,500
Median Listing Price (Nassau County)
$959,250
Median Gross Rent
$-666,666,666/mo
Price Trend (YoY)
+6.7%
Market data compiled from public sources; deemed reliable but not guaranteed; verify independently. See About
Local resources
Get help buying or selling in Harbor Isle
What can I afford?
Estimate a comfortable price range in under a minute, then connect with a lender for real numbers.
Rough estimate only (28% of income toward housing, ~6.5% illustrative rate, 30-year term) — not a loan offer or pre-qualification. Connect with a lender for real numbers →
Open
Advertise to local buyers
Lenders, inspectors, movers, and other local pros — this spot is open.
Advertise here →Why Harbor Isle
What makes Harbor Isle different
Home Value, By Source
The Census Bureau's American Community Survey (2023 5-year estimate) puts Harbor Isle's median home value — across all owner-occupied homes, not just recent sales — at $606,500. Separately, Nassau County's current median listing price (via Realtor.com data, 2026-06-01) runs $959,250. 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
Nassau County's FHFA house price index shows a 6.97% annual change in 2025.
Population & Income
Harbor Isle has an estimated population of 1,401 and a median household income of $124,681, per the Census Bureau's American Community Survey (2023 5-year estimate).
Affordability Snapshot
Harbor Isle's Census-reported median home value works out to about 4.9x the area's median household income, and median gross rent runs roughly -6416375% 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 Harbor Isle
County guide: Nassau County — cities, market context, and local resources for the county that includes Harbor Isle.
USAHouses.com also helps visitors looking in nearby Nassau 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 Island Park, Barnum Island, Long Beach, Bay Park, Hewlett Neck, Hewlett Harbor, Woodsburgh, Oceanside, Lawrence, East Atlantic Beach, Hewlett Bay Park, East Rockaway, Hewlett, Lido Beach, Atlantic Beach, Cedarhurst.
Island Park market data
Nearby city · ~0.5 mi
Barnum Island market data
Nearby city · ~1.1 mi
Long Beach market data
Nearby city · ~1.1 mi
Bay Park market data
Nearby city · ~2.0 mi
Hewlett Neck market data
Nearby city · ~2.3 mi
Hewlett Harbor market data
Nearby city · ~2.4 mi
Woodsburgh market data
Nearby city · ~2.5 mi
Oceanside market data
Nearby city · ~2.5 mi
Lawrence market data
Nearby city · ~2.6 mi
East Atlantic Beach market data
Nearby city · ~2.8 mi
Hewlett Bay Park market data
Nearby city · ~2.8 mi
East Rockaway market data
Nearby city · ~2.9 mi
Hewlett market data
Nearby city · ~3.1 mi
Lido Beach market data
Nearby city · ~3.3 mi
Atlantic Beach market data
Nearby city · ~3.4 mi
Cedarhurst market data
Nearby city · ~3.7 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: Amityville (~13.9 mi), North Amityville (~14.9 mi), Gilgo (~14.9 mi), New York (~15.0 mi), Copiague (~15.0 mi), East Farmingdale (~16.2 mi), North Lindenhurst (~16.3 mi), Lindenhurst (~16.4 mi), West Babylon (~17.7 mi), Melville (~18.3 mi), Wyandanch (~18.8 mi), Babylon (~18.8 mi), Wheatley Heights (~19.0 mi), West Hills (~19.3 mi), North Babylon (~19.9 mi), Oak Beach (~20.5 mi).
New construction: New homes near Harbor Isle (New York City) · New York new construction.
Census & home facts
Harbor Isle data from published sources
Population (ACS 2023)
1,401
Median home value (ACS 2023)
$606,500
Median household income (ACS 2023)
$124,681
County FHFA annual change (2025)
6.97%
County median listing price (FRED/Realtor.com) (2026-06-01)
$959,250
Census place type
CDP
County
Nassau County
Land area (Census Gazetteer 2024)
0.17 sq mi
Census GEOID
3632105
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 Harbor Isle
Availability and pricing are controlled by the builder and may change; confirm with the builder.
Manhasset Crest ↗
Toll Brothers · Manhasset, New York · ~12.7 mi · from $3,098,000
The Rose at Great Neck ↗
McKinley Homes · Great Neck, New York · ~14.3 mi
The Rockwell ↗
Toll Brothers · New York, New York · ~20.9 mi · from $1,905,000
151 Bay Street at Provost Square ↗
Toll Brothers · Jersey City, New Jersey · ~21.3 mi · from $716,000
Vista Pointe at Port Imperial ↗
Toll Brothers · West New York, New Jersey · ~21.7 mi · from $998,000
Local life
Life in Harbor Isle
Schools
EAST MEADOW UNION FREE SCHOOL DISTRICT — 9 schools, 7,802 students enrolled, per the U.S. Department of Education's Common Core of Data. Nassau addresses may be served by EAST MEADOW UNION FREE SCHOOL DISTRICT, but attendance zones vary by street — confirm assigned schools with the district before making a move.
Reach Harbor Isle buyers
Builders: feature your communities in front of Harbor Isle buyers — learn about advertising ↗
Want to own this market? Ask about our Harbor Isle domains — see available domains ↗
Common questions
Harbor Isle FAQ
What are houses worth in Harbor Isle, NY?
The Census Bureau's American Community Survey puts the median value of houses in Harbor Isle at $606,500. Nassau County's current median listing price runs $959,250, up about 6.7% over the past year.
How much do houses cost in Harbor Isle, NY?
For owner-occupied houses in Harbor Isle, Census ACS data shows a median value of $606,500. Active listing prices in Nassau County may differ — see the market snapshot above.
What types of houses are in Harbor Isle, NY?
Harbor Isle houses include resale single-family homes, condos, mobile homes, and small multi-unit buildings, plus new construction in surrounding Nassau 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 Harbor Isle, NY?
The U.S. Census Bureau's American Community Survey (2023 5-year estimate) puts Harbor Isle's population at approximately 1,401.
What's the median rent in Harbor Isle, NY?
The Census ACS estimates median gross rent in Harbor Isle at approximately $-666,666,666 per month.
What is the median household income in Harbor Isle, NY?
Census ACS data puts the median household income in Harbor Isle at approximately $124,681.
Is the Harbor Isle housing market growing?
Nassau County's FHFA house price index shows a 6.97% annual change in 2025.
Is Harbor Isle, NY affordable relative to income?
Census ACS data puts Harbor Isle's median home value at about 4.9 times the median household income, with median gross rent equal to roughly -6416375% 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 Harbor Isle, NY?
Manifest and public school-directory data suggest EAST MEADOW UNION FREE SCHOOL DISTRICT for many Harbor Isle addresses, but attendance zones vary by street — verify your assigned schools with the district before making a move.
Search Harbor Isle
Look up homes in Harbor Isle
Search USAHouses.com places, or open verified new construction on NewUSAHouses.com.
New construction in New York ↗Get connected
Find your Harbor Isle new home
Prices, availability, and incentives change weekly and don't always make it onto this page. Tell us your area, budget, and timeline and we'll point you to communities that fit — including options we track but haven't published here yet.
Get connected in Harbor IsleExplore more
Where to go next
Get the Harbor Isle market guide
Tell us what you're looking for — buy, sell, both, invest, rent, or you're an agent, builder, vendor, or advertiser. Include where you want to buy or sell and your address if relevant, and we'll route you to the right resource.
Buyer · Seller · Both · Investor · Renter · Agent/Broker · New Home Builder · Vendor/Service Pro · Advertiser · Other
