Town guide

Islip, New York

Islip is a town in Suffolk County, New York, home to about 339,106 people across 103 square miles. Its ZIP codes are 11705, 11706, 11716, 11717, 11718, 11722, 11730, 11739, 11741, 11749, 11751, 11752, 11769, 11770, 11779, 11782, 11788, 11795 and 11796, and parts of 11702, 11715 and 11742 are in Islip too.

Homes sold for a median of $426 per square foot across 19 ZIP codes in the three months ending August 2026, and 16 of 19 were seller’s markets.

Population339,1063,286 per sq mi

Median home value$535,300Census, as estimated by owners

Price per sq ft$426Sold homes, 3 months to August 2026

Sold over asking68%Median of 19 ZIP codes

ZIP codes in Islip

22 ZIP codes, 3 shared with neighboring towns

Bayport, NY11705 Seller’s market $426/sq ft +5.7% vs. last year 1.8 months of supply · 56% sold over asking Heat score 58/100

All in Islip

Bay Shore, NY11706 Seller’s market $426/sq ft +9.0% vs. last year 2.5 months of supply · 60% sold over asking Heat score 44/100

All in Islip

Bohemia, NY11716 Seller’s market $385/sq ft −3.5% vs. last year 1.2 months of supply · 68% sold over asking Heat score 71/100

All in Islip

Brentwood, NY11717 Seller’s market $426/sq ft +8.1% vs. last year 2.5 months of supply · 83% sold over asking Heat score 70/100

All in Islip

Brightwaters, NY11718 Balanced $441/sq ft +28.8% vs. last year 4.5 months of supply · 80% sold over asking

All in Islip

Central Islip, NY11722 Seller’s market $400/sq ft +9.7% vs. last year 2.6 months of supply · 66% sold over asking Heat score 56/100

All in Islip

East Islip, NY11730 Seller’s market $444/sq ft +12.1% vs. last year 2.2 months of supply · 83% sold over asking Heat score 78/100

All in Islip

Great River, NY11739 Balanced $519/sq ft +44.9% vs. last year 4 months of supply · 25% sold over asking

All in Islip

Holbrook, NY11741 Seller’s market $403/sq ft +5.2% vs. last year 1.3 months of supply · 85% sold over asking Heat score 91/100

Mostly Islip; also Brookhaven

Islandia, NY11749 Seller’s market $366/sq ft −0.8% vs. last year 3.8 months of supply · 20% sold over asking

All in Islip

Islip, NY11751 Seller’s market $434/sq ft +10.2% vs. last year 1.9 months of supply · 63% sold over asking Heat score 60/100

All in Islip

Islip Terrace, NY11752 Seller’s market $380/sq ft −9.3% vs. last year 0.8 months of supply · 81% sold over asking Heat score 85/100

All in Islip

Oakdale, NY11769 Seller’s market $389/sq ft −0.5% vs. last year 3 months of supply · 67% sold over asking Heat score 51/100

All in Islip

Ocean Beach, NY11770 Buyer’s market $972/sq ft −23.9% vs. last year 22.4 months of supply · 0% sold over asking

Mostly Islip; also Brookhaven

Ronkonkoma, NY11779 Seller’s market $436/sq ft −0.3% vs. last year 1.7 months of supply · 68% sold over asking Heat score 69/100

Mostly Islip; also Brookhaven

Sayville, NY11782 Seller’s market $507/sq ft +9.8% vs. last year 2.2 months of supply · 79% sold over asking Heat score 75/100

Mostly Islip; also Brookhaven

Hauppauge, NY11788 Seller’s market $414/sq ft +2.8% vs. last year 1.4 months of supply · 62% sold over asking Heat score 66/100

Mostly Islip; also Smithtown

West Islip, NY11795 Seller’s market $451/sq ft +6.5% vs. last year 1.3 months of supply · 80% sold over asking Heat score 80/100

All in Islip

West Sayville, NY11796 Seller’s market $524/sq ft +21.3% vs. last year 0.5 months of supply · 100% sold over asking

All in Islip

Babylon, NY11702 Seller’s market $455/sq ft −3.0% vs. last year 2.3 months of supply · 73% sold over asking Heat score 63/100

Mostly Babylon; part is in Islip

Blue Point, NY11715 Seller’s market $428/sq ft +6.9% vs. last year 1.3 months of supply · 40% sold over asking

Mostly Brookhaven; part is in Islip

Holtsville, NY11742 Seller’s market $394/sq ft +15.7% vs. last year 1.1 months of supply · 67% sold over asking Heat score 70/100

Mostly Brookhaven; part is in Islip

Each card is that ZIP code’s whole market, including any part outside Islip. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology

The Islip guide is on the way

We’re writing up Islip’s story and what everyday life there is like, for people thinking about moving in.

History
What it’s like to live there
Getting around
Things to do

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Islip at a glance

Town · Suffolk County, NY

Population	339,1063,286 per square mile
Land area	103 square milesplus 60 of water
Median household income	$130,132average $154,844
Median home value	$535,300as estimated by owners
Median rent	$2,209/month
Homes lived in by owners	81%
Single-family houses	75% of homes
Median year built	1967
Average household	3.28 people
Median age	39.2
Average commute	28 minutes8% work from home
Adults with a degree	33%bachelor’s or higher

Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates for the county subdivision; town boundaries and ZIP code overlaps from the Census Bureau’s 2020 relationship files; market figures from Redfin, a national real estate brokerage. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Around Islip

Distances

Nearest major airport	John F. Kennedy International Airport (JFK)32 miles away
Closer regional airport	Long Island MacArthur Airport (ISP)5 miles away
Nearest city of 250,000+	New York, NY40 miles away

Straight-line distances from the center of Islip; driving is longer.

Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.

Who represents Islip

U.S. Representative · New York’s 2nd DistrictAndrew R. Garbarino (R)
U.S. SenatorCharles E. Schumer (D)
U.S. SenatorKirsten E. Gillibrand (D)
GovernorKathy Hochul (D)

Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.

Population over time

Islip had 339,938 residents in the 2020 census, up 5% since 2000.

It’s the 8th largest of 1,007 towns in New York by population.

Suffolk County grew from 77,582 residents in 1900 to 1,525,920 in 2020.

Suffolk County, 1900–2020

Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).

Weather by month

Average highs peak around 83°F in summer, and winter lows average 25°F. About 46.1 inches of rain and melted snow fall in a typical year, with about 32 inches of snow.

Source: NOAA 1991–2020 climate normals, Islip Li Macarthur Ap, NY weather station (5 miles away).

Jobs in Suffolk County

592,580 jobs at 50,748 businesses in Suffolk County. The biggest industries by employees:

Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).

Health care

4,469 doctors and other health care providers list an office in Islip’s ZIP codes.

Nearest hospitals

Ns/Lij Hs Southside HospitalGeneral hospital · emergency room · CMS rating 3 of 5 · Bay Shore3.8 miles
Good Samaritan Hospital Medical CenterGeneral hospital · emergency room · CMS rating 3 of 5 · West Islip7.3 miles
St. Catherine of Siena HospitalGeneral hospital · emergency room · CMS rating 5 of 5 · Smithtown7.8 miles

Providers with an office here

Primary care doctors	322
Specialist doctors	799
Dentists	238
Nurse practitioners and physician assistants	1,025
Mental health providers	1,247
Physical and occupational therapists	655
Optometrists	58
Chiropractors	125
Pharmacies	104

Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.

Places in and around Islip

Parks (106 nearby)

Heckscher State Park · 1,538 acres3.4 mi
Blydenburgh County Park · 604 acres5.9 mi
Gardiner County Park · 223 acres6.4 mi
Hard Estate-West Sayville County Park · 212 acres4.8 mi
Bohemia County Park · 171 acres2.9 mi
Hidden Pond Park · 143 acres4.4 mi

Grocery stores (26 nearby)

Pat's Marketplace1.6 mi
A S Italian Fine Foods1.7 mi
Aiello Bros. Pork Store1.8 mi
Lidl2.0 mi

Pharmacies (8 nearby)

CVS Pharmacy2.6 mi
Walgreens3.2 mi
CVS Pharmacy4.4 mi
Walgreens4.5 mi

Libraries (6 nearby)

East Islip Public Library1.5 mi
Islip Public Library2.7 mi
Central Islip Public Library2.8 mi
Bay Shore - Brightwaters Public Library5.0 mi
Sayville Library5.4 mi

Museums (7 nearby)

Islip Town Firefighters Museum0.9 mi
Bayard Cutting Estate Mansion1.7 mi
Bay Shore Historical Society4.3 mi
Suffolk County Marine Museum West4.9 mi
Long Island Maritime Museum5.0 mi

Theaters and performance venues (5 nearby)

Culinary Arts Center1.2 mi
Bayway Arts Center1.5 mi
CM Performing Arts Center3.4 mi
YMCA Boulton Center For The Performing Arts4.3 mi
Van Nostrand Theater5.7 mi

Counts are within about 6.5 miles of the center of town.

Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.

Colleges, teams and notable people

Established in 1683.

Notable people born here

Tobias Harris (1992) · American basketball player (born 1992)
Michael Plumb (1940) · American equestrian
ZillaKami (1999) · American rapper

Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.

Schools in Islip

Public schools here are run by Central Islip Union Free School District, West Islip Union Free School District, Hauppauge Union Free School District and others. Check each district’s attendance zones for a specific address.

Public schools (83)

School	Grades	Students	Type	Distance
Anthony Alfano Elementary SchoolCentral Islip	Pre-K–6	491	Public	2.9 mi
Bayview Elementary SchoolWest Islip	Pre-K–5	440	Public	7.1 mi
Bretton Woods Elementary SchoolHauppauge	Pre-K–5	509	Public	4.2 mi
Cherry Avenue Elementary SchoolWest Sayville	Pre-K–5	374	Public	4.7 mi
Connetquot Elementary SchoolIslip Terrace	Pre-K–2	352	Public	0.4 mi
East Elementary SchoolBrentwood	Pre-K–K	430	Public	3.2 mi
Edith L Slocum Elementary SchoolRonkonkoma	Pre-K–5	257	Public	4.5 mi
Edward J Bosti Elementary SchoolBohemia	Pre-K–5	269	Public	3.8 mi
Idle Hour Elementary SchoolOakdale	Pre-K–5	218	Public	2.0 mi
Lincoln Avenue Elementary SchoolSayville	Pre-K–5	428	Public	5.0 mi
Manetuck Elementary SchoolWest Islip	Pre-K–5	514	Public	6.7 mi
Oquenock Elementary SchoolWest Islip	Pre-K–5	418	Public	6.7 mi
Paul J Bellew Elementary SchoolWest Islip	Pre-K–5	463	Public	7.6 mi
Sunrise Drive Elementary SchoolSayville	Pre-K–5	388	Public	5.6 mi
Sylvan Avenue Elementary SchoolBayport	Pre-K–5	318	Public	6.9 mi
Timber Point Elementary SchoolEast Islip	Pre-K–2	370	Public	2.4 mi
Woodhull SchoolBay Shore	Pre-K–6	35	Public	7.7 mi
Academy Street Elementary SchoolBayport	K–5	317	Public	6.4 mi
Andrew T Morrow SchoolIslandia	K–6	821	Public	3.5 mi
Bay Shore Prekindergarten CenterBay Shore	K	27	Public	3.4 mi
Brook Avenue Elementary SchoolBay Shore	K–2	336	Public	3.8 mi
Charles A Mulligan Elementary SchoolCentral Islip	K–6	997	Public	2.7 mi
Cherokee Street Elementary SchoolRonkonkoma	K–5	618	Public	4.8 mi
Cordello Avenue Elementary SchoolCentral Islip	K–6	490	Public	2.3 mi
Fifth Avenue SchoolBay Shore	K–2	342	Public	4.5 mi
Francis J O'Neill SchoolCentral Islip	K–6	600	Public	2.4 mi
Grundy Avenue SchoolHolbrook	K–5	452	Public	5.9 mi
Helen B Duffield Elementary SchoolRonkonkoma	K–5	313	Public	4.1 mi
Hemlock Elementary SchoolBay Shore	K–5	609	Public	4.9 mi
Hiawatha SchoolLake Ronkonkoma	K–5	541	Public	6.4 mi

And 53 more.

Private schools (8)

School	Grades	Students	Affiliation	Distance
Developmental Disabilities InstituteRonkonkoma	Pre-K	6	Nonsectarian	4.9 mi
Mdq AcademyBrentwood	Pre-K–12	276	Islamic	3.4 mi
Nysarc Inc-Suffolk ChapterBohemia	Pre-K	90	Nonsectarian	2.8 mi
St Patrick SchoolBay Shore	Pre-K–8	395	Roman Catholic	4.6 mi
Bay Shore Christian SchoolBay Shore	K–6	71	Assembly of God	5.4 mi
St Mary SchoolEast Islip	K–8	331	Roman Catholic	2.0 mi
West Sayville Christian SchoolWest Sayville	K–12	40	Christian (no specific denomination)	4.7 mi
St John the Baptist Diocesan High SchoolWest Islip	9–12	969	Roman Catholic	7.2 mi

Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.

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Towns near Islip

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Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.