House Prices

Seaford Harbor Seaford, NY House Prices & Home Values 2026


Average Data

average house price$657,801
average size per house1899 ft²
average price per ft²335 $ / ft²

06/24/2026 - The value range (VR) for house prices in Seaford Harbor Seaford, NY is $318.25/ sqft to $351.75/ sqft. An average home with 1899 sqft costs approximately $583,205 to $644,595. Seaford, NY includes 1 ZIP codes and it is located in Nassau county. The lowest prices are found in ZIP 11783, while the highest are in ZIP 11783. The average price per sqare feet is $335. Our analysis is based on 10 property listings.

Avergage prices by ZIP codes Seaford Harbor Seaford

11783305 $ / ft²




Historical development of home values in Seaford Harbor Seaford

Year Estimated value (USD) Change vs. 2025
2010 $305,495 -53.6%
2011 $293,681 -55.4%
2012 $292,890 -55.5%
2013 $303,838 -53.8%
2014 $318,946 -51.5%
2015 $335,316 -49.0%
2016 $352,815 -46.4%
2017 $371,857 -43.5%
2018 $392,416 -40.3%
2019 $410,611 -37.6%
2020 $431,838 -34.4%
2021 $491,169 -25.3%
2022 $572,593 -13.0%
2023 $603,826 -8.2%
2024 $638,758 -2.9%
2025 $657,801 0.0%

Graph: estimated home values in Seaford Harbor Seaford over time (USD)



Example: 100% financing house in Seaford Harbor Seaford

Loan amount: $657,801

Interest rate: 5.79%

Fixed monthly payment: $3,855.48

Breakdown in the 1st month:
Interest portion: $3,173.89  –  Principal portion: $681.59

Yearly breakdown (100% financing)

Year Interest per year ($) Principal per year ($) Remaining balance at year-end ($)
1 $37,866.10 $8,399.66 $649,401.34
2 $37,366.64 $8,899.11 $640,502.23
3 $36,837.49 $9,428.27 $631,073.96
4 $36,276.87 $9,988.89 $621,085.08
5 $35,682.91 $10,582.84 $610,502.24
6 $35,053.64 $11,212.11 $599,290.12
7 $34,386.95 $11,878.80 $587,411.32
8 $33,680.62 $12,585.13 $574,826.19
9 $32,932.29 $13,333.46 $561,492.73
10 $32,139.46 $14,126.29 $547,366.43
11 $31,299.49 $14,966.26 $532,400.17
12 $30,409.57 $15,856.18 $516,543.99
13 $29,466.74 $16,799.01 $499,744.98
14 $28,467.85 $17,797.91 $481,947.08
15 $27,409.56 $18,856.20 $463,090.88
16 $26,288.34 $19,977.41 $443,113.47
17 $25,100.45 $21,165.30 $421,948.17
18 $23,841.93 $22,423.82 $399,524.35
19 $22,508.58 $23,757.17 $375,767.18
20 $21,095.94 $25,169.81 $350,597.36
21 $19,599.31 $26,666.45 $323,930.92
22 $18,013.68 $28,252.07 $295,678.84
23 $16,333.77 $29,931.98 $265,746.86
24 $14,553.97 $31,711.79 $234,035.07
25 $12,668.34 $33,597.42 $200,437.66
26 $10,670.58 $35,595.17 $164,842.49
27 $8,554.04 $37,711.71 $127,130.78
28 $6,311.65 $39,954.11 $87,176.67
29 $3,935.92 $42,329.84 $44,846.83
30 $1,418.92 $44,846.83 $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 Seaford Harbor Seaford, NY


1500 sqft3900 sqft
Ø selling price$586,745$1,248,165
Ø fast selling$533,404$1,123,349
Ø high price sale$640,085$1,372,982

In 2026, houses in Seaford Harbor Seaford, NY will be offered at an average price of $335 per square foot. A 1,500 sqft home priced at $586,745 is 22.20% more expensive per square foot than a 3,900 sqft home priced at $1,248,165. Home prices in Seaford Harbor Seaford, 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 $864,115. Sellers who can wait longer may achieve a higher price of up to $1,056,140.

FAQ – Home Values in Seaford Harbor Seaford

What is the median home value in Seaford Harbor Seaford in 2026?

In 2026, the typical home value in Seaford Harbor Seaford is about $657,801 for an average home size of 1899 square feet. This corresponds to an average price of roughly $335 per square foot.

What is the average cost per square foot in Seaford Harbor Seaford?

In 2026, homes in Seaford Harbor Seaford sell for an average of around $335 per square foot, with a typical range between $318.25 and $351.75 per square foot, depending on the property’s location, condition, and lot size.

What is the average home size in Seaford Harbor?

The average home size in Seaford Harbor Seaford is about 1899 square feet, with an estimated 2026 value around $657,801.



Neighborhoods close to Seaford Harbor Seaford, NY

East Shoreham Shoreham, NY223 $ / ft²
Village of the Branch Smithtown, NY294 $ / ft²
Hamlet at Wind Watch Hauppauge, NY256 $ / ft²
Mills Pond Estates Saint James, NY296 $ / ft²
Lakeland Ronkonkoma, NY248 $ / ft²
North Shore Beach Rocky Point, NY330 $ / ft²
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