House Prices

Downtown Islip Islip, NY House Prices & Home Values 2026


Average Data

average house price$843,671
average size per house2670 ft²
average price per ft²330 $ / ft²

06/24/2026 - The value range (VR) for house prices in Downtown Islip Islip, NY is $313.5/ sqft to $346.5/ sqft. An average home with 2670 sqft costs approximately $872,201 to $964,012. 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 $330. Our analysis is based on 6 property listings.

Avergage prices by ZIP codes Downtown Islip Islip

11751334 $ / ft²




Historical development of home values in Downtown Islip Islip

Year Estimated value (USD) Change vs. 2025
2010 $391,816 -53.6%
2011 $376,664 -55.4%
2012 $375,650 -55.5%
2013 $389,691 -53.8%
2014 $409,068 -51.5%
2015 $430,063 -49.0%
2016 $452,507 -46.4%
2017 $476,930 -43.5%
2018 $503,298 -40.3%
2019 $526,635 -37.6%
2020 $553,859 -34.4%
2021 $629,955 -25.3%
2022 $734,387 -13.0%
2023 $774,445 -8.2%
2024 $819,247 -2.9%
2025 $843,671 0.0%

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



Example: 100% financing house in Downtown Islip Islip

Loan amount: $843,671

Interest rate: 6.25%

Fixed monthly payment: $5,195.72

Breakdown in the 1st month:
Interest portion: $4,395.53  –  Principal portion: $800.20

Yearly breakdown (100% financing)

Year Interest per year ($) Principal per year ($) Remaining balance at year-end ($)
1 $52,466.32 $9,882.38 $833,788.62
2 $51,830.46 $10,518.24 $823,270.38
3 $51,153.68 $11,195.02 $812,075.36
4 $50,433.36 $11,915.34 $800,160.02
5 $49,666.69 $12,682.01 $787,478.02
6 $48,850.69 $13,498.00 $773,980.01
7 $47,982.19 $14,366.51 $759,613.51
8 $47,057.81 $15,290.89 $744,322.62
9 $46,073.95 $16,274.75 $728,047.87
10 $45,026.78 $17,321.92 $710,725.95
11 $43,912.24 $18,436.46 $692,289.49
12 $42,725.98 $19,622.72 $672,666.77
13 $41,463.40 $20,885.30 $651,781.46
14 $40,119.57 $22,229.13 $629,552.34
15 $38,689.28 $23,659.41 $605,892.92
16 $37,166.97 $25,181.73 $580,711.19
17 $35,546.70 $26,802.00 $553,909.19
18 $33,822.18 $28,526.52 $525,382.67
19 $31,986.70 $30,362.00 $495,020.67
20 $30,033.11 $32,315.59 $462,705.08
21 $27,953.83 $34,394.87 $428,310.21
22 $25,740.76 $36,607.93 $391,702.28
23 $23,385.30 $38,963.40 $352,738.88
24 $20,878.28 $41,470.42 $311,268.46
25 $18,209.95 $44,138.75 $267,129.71
26 $15,369.93 $46,978.77 $220,150.94
27 $12,347.17 $50,001.53 $170,149.41
28 $9,129.93 $53,218.77 $116,930.64
29 $5,705.67 $56,643.03 $60,287.61
30 $2,061.09 $60,287.61 $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 Downtown Islip Islip, NY


1500 sqft3900 sqft
Ø selling price$624,106$1,327,644
Ø fast selling$567,369$1,194,880
Ø high price sale$680,843$1,460,408

In 2026, houses in Downtown Islip Islip, NY will be offered at an average price of $330 per square foot. A 1,500 sqft home priced at $624,106 is 23.97% more expensive per square foot than a 3,900 sqft home priced at $1,327,644. Home prices in Downtown Islip Islip, NY vary significantly depending on the property’s condition and exact location. For a quick sale, a 2,700 sqft home should be listed at around $919,138. Sellers who can wait longer may achieve a higher price of up to $1,123,391.

FAQ – Home Values in Downtown Islip Islip

What is the median home value in Downtown Islip Islip in 2026?

In 2026, the typical home value in Downtown Islip Islip is about $843,671 for an average home size of 2670 square feet. This corresponds to an average price of roughly $330 per square foot.

What is the average cost per square foot in Downtown Islip Islip?

In 2026, homes in Downtown Islip Islip sell for an average of around $330 per square foot, with a typical range between $313.5 and $346.5 per square foot, depending on the property’s location, condition, and lot size.

What is the average home size in Downtown Islip?

The average home size in Downtown Islip Islip is about 2670 square feet, with an estimated 2026 value around $843,671.



Neighborhoods close to Downtown Islip Islip, NY

West Birchwood Jericho, NY439 $ / ft²
San Remo Kings Park, NY297 $ / ft²
Encore at Lake Grove Lake Grove, NY199 $ / ft²
The Greens at Half Hollow Melville, NY380 $ / ft²
South Huntington Huntington Station, NY148 $ / ft²
Huntington Village Huntington, NY216 $ / ft²
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