House Prices

House Prices & Home Values Islip, NY 2026


Average Data

average house price$809,665
average size per house2562 ft²
average price per ft²317 $ / ft²

04/04/2026 - The value range (VR) for house prices in Islip, NY is $320/ sqft to $320/ sqft. An average home with 2562 sqft costs approximately $819,840 to $819,840. Islip, NY includes 1 ZIP codes and it is located in Suffolk county. The lowest prices are found in ZIP 11751, while the highest are in ZIP 11751. The average price per sqare feet is $317. Our analysis is based on 36 property listings.

Avergage prices by ZIP codes Islip

11751297 $ / ft²


House prices by neighborhoods in Islip

Bayberry Point308 $ / ft²
Downtown Islip334 $ / ft²
Islip Hamlet Historic District349 $ / ft²
North of Montauk351 $ / ft²
South of Montauk300 $ / ft²




Historical development of home values in Islip

Year Estimated value (USD) Change vs. 2025
2010 $376,023 -53.6%
2011 $361,482 -55.4%
2012 $360,509 -55.5%
2013 $373,984 -53.8%
2014 $392,580 -51.5%
2015 $412,729 -49.0%
2016 $434,268 -46.4%
2017 $457,707 -43.5%
2018 $483,011 -40.3%
2019 $505,408 -37.6%
2020 $531,535 -34.4%
2021 $604,564 -25.3%
2022 $704,785 -13.0%
2023 $743,229 -8.2%
2024 $786,226 -2.9%
2025 $809,665 0.0%

Graph: estimated home values in Islip over time (USD)



Example: 100% financing house in Islip

Loan amount: $809,665

Interest rate: 6.00%

Fixed monthly payment: $4,854.35

Breakdown in the 1st month:
Interest portion: $4,048.33  –  Principal portion: $806.03

Yearly breakdown (100% financing)

Year Interest per year ($) Principal per year ($) Remaining balance at year-end ($)
1 $48,309.43 $9,942.78 $799,722.22
2 $47,696.18 $10,556.03 $789,166.19
3 $47,045.11 $11,207.10 $777,959.09
4 $46,353.88 $11,898.33 $766,060.75
5 $45,620.01 $12,632.20 $753,428.56
6 $44,840.89 $13,411.32 $740,017.24
7 $44,013.71 $14,238.50 $725,778.73
8 $43,135.51 $15,116.70 $710,662.03
9 $42,203.14 $16,049.07 $694,612.96
10 $41,213.27 $17,038.94 $677,574.03
11 $40,162.35 $18,089.86 $659,484.16
12 $39,046.60 $19,205.61 $640,278.56
13 $37,862.04 $20,390.17 $619,888.39
14 $36,604.42 $21,647.79 $598,240.60
15 $35,269.23 $22,982.98 $575,257.63
16 $33,851.69 $24,400.51 $550,857.11
17 $32,346.72 $25,905.49 $524,951.63
18 $30,748.93 $27,503.28 $497,448.35
19 $29,052.59 $29,199.62 $468,248.73
20 $27,251.62 $31,000.59 $437,248.14
21 $25,339.57 $32,912.64 $404,335.50
22 $23,309.59 $34,942.62 $369,392.88
23 $21,154.41 $37,097.80 $332,295.08
24 $18,866.30 $39,385.91 $292,909.17
25 $16,437.06 $41,815.15 $251,094.02
26 $13,857.99 $44,394.22 $206,699.80
27 $11,119.85 $47,132.36 $159,567.44
28 $8,212.83 $50,039.38 $109,528.07
29 $5,126.51 $53,125.70 $56,402.37
30 $1,849.84 $56,402.37 $0.00

Note: The calculation is based on a standard annuity mortgage with a fixed monthly payment over the entire term. Extra payments, interest rate changes, and additional purchase costs (e.g. taxes, notary fees) are not included.


How to sell in Islip, NY


1500 sqft3900 sqft
Ø selling price$575,356$1,223,937
Ø fast selling$523,051$1,101,544
Ø high price sale$627,660$1,346,331

In 2026, houses in Islip, NY will be offered at an average price of $317 per square foot. A 1,500 sqft home priced at $575,356 is 21.34% more expensive per square foot than a 3,900 sqft home priced at $1,223,937. Home prices in Islip, NY vary significantly depending on the neighborhood and location. For a quick sale, a 2,700 sqft home should be listed at around $847,342. Sellers who can wait longer may achieve a higher price of up to $1,035,640.


Islip, NY Travel and Living Guide

Overview

Located on the South Shore of Long Island, Islip, NY blends historic charm with easy coastal living. As part of the larger Town of Islip, its hamlets and villages offer diverse neighborhoods, waterfront parks, and family-friendly amenities.

Beaches and Downtown

Visitors love the quick ferries to Fire Island, where pristine beaches, dunes, and boardwalks create a classic summer escape.
In-town, Bay Shore and Islip Hamlet feature vibrant main streets with craft eateries, local boutiques, and a lively arts scene.

Parks and Waterfront

Outdoor enthusiasts explore Heckscher State Park for biking, birding, and sweeping Great South Bay views. Marinas, kayak launches, and nature preserves make waterfront recreation a year-round highlight.

Getting Around

Commuters appreciate convenient access via the LIRR, Sunrise Highway, and the nearby Long Island MacArthur Airport.

Community and Real Estate

Top-rated schools, community events, and historic sites underscore Islip?s strong hometown feel. Real estate ranges from charming capes and colonials to modern condos, appealing to first-time buyers and move-up families.

Why Visit Islip

Whether you?re planning a beach day, a dining crawl, or a relaxed weekend getaway, Islip, NY delivers an authentic Long Island coastal experience.



FAQ – Home Values in Islip

What is the median home value in Islip in 2026?

In 2026, the typical home value in Islip is about $809,665 for an average home size of 2562 square feet. This corresponds to an average price of roughly $317 per square foot.

What is the average cost per square foot in Islip?

In 2026, homes in Islip sell for an average of around $317 per square foot, with a typical range between $320 and $320 per square foot, depending on the property’s location, condition, and lot size.

What is the average home size in ?

The average home size in Islip is about 2562 square feet, with an estimated 2026 value around $809,665.



Locations close to Islip, NY

Islip Terrace, NY323 $ / ft²
Jericho, NY457 $ / ft²
Kings Park, NY264 $ / ft²
Islandia, NY340 $ / ft²
Melville, NY364 $ / ft²
Huntington Station, NY158 $ / ft²
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