House Prices

Islington Creek Portsmouth, NH House Prices & Home Values 2026


Average Data

average house price$2,286,900
average size per house3107 ft²
average price per ft²681 $ / ft²

07/04/2026 - The value range (VR) for house prices in Islington Creek Portsmouth, NH is $646.95/ sqft to $715.05/ sqft. An average home with 3107 sqft costs approximately $1,857,309 to $2,052,815. Portsmouth, NH includes 1 ZIP codes and it is located in Rockingham county. The lowest prices are found in ZIP 03801, while the highest are in ZIP 03801. The average price per sqare feet is $681. Our analysis is based on 1 property listings.

Avergage prices by ZIP codes Islington Creek Portsmouth

03801246 $ / ft²




Historical development of home values in Islington Creek Portsmouth

Year Estimated value (USD) Change vs. 2025
2010 $1,062,078 -53.6%
2011 $1,021,007 -55.4%
2012 $1,018,258 -55.5%
2013 $1,056,318 -53.8%
2014 $1,108,843 -51.5%
2015 $1,165,753 -49.0%
2016 $1,226,589 -46.4%
2017 $1,292,793 -43.5%
2018 $1,364,266 -40.3%
2019 $1,427,525 -37.6%
2020 $1,501,321 -34.4%
2021 $1,707,591 -25.3%
2022 $1,990,668 -13.0%
2023 $2,099,251 -8.2%
2024 $2,220,696 -2.9%
2025 $2,286,900 0.0%

Graph: estimated home values in Islington Creek Portsmouth over time (USD)



Example: 100% financing house in Islington Creek Portsmouth

Loan amount: $2,286,900

Interest rate: 5.54%

Fixed monthly payment: $13,047.97

Breakdown in the 1st month:
Interest portion: $10,565.48  –  Principal portion: $2,482.49

Yearly breakdown (100% financing)

Year Interest per year ($) Principal per year ($) Remaining balance at year-end ($)
1 $126,017.00 $30,558.64 $2,256,341.36
2 $124,279.11 $32,296.53 $2,224,044.83
3 $122,442.38 $34,133.25 $2,189,911.58
4 $120,501.20 $36,074.43 $2,153,837.14
5 $118,449.62 $38,126.01 $2,115,711.13
6 $116,281.37 $40,294.26 $2,075,416.87
7 $113,989.81 $42,585.82 $2,032,831.04
8 $111,567.93 $45,007.71 $1,987,823.34
9 $109,008.31 $47,567.32 $1,940,256.01
10 $106,303.13 $50,272.51 $1,889,983.50
11 $103,444.10 $53,131.54 $1,836,851.96
12 $100,422.47 $56,153.17 $1,780,698.80
13 $97,229.00 $59,346.63 $1,721,352.16
14 $93,853.92 $62,721.71 $1,658,630.45
15 $90,286.90 $66,288.74 $1,592,341.71
16 $86,517.01 $70,058.62 $1,522,283.09
17 $82,532.73 $74,042.90 $1,448,240.19
18 $78,321.86 $78,253.77 $1,369,986.42
19 $73,871.52 $82,704.11 $1,287,282.30
20 $69,168.09 $87,407.55 $1,199,874.75
21 $64,197.16 $92,378.47 $1,107,496.28
22 $58,943.54 $97,632.10 $1,009,864.18
23 $53,391.14 $103,184.50 $906,679.68
24 $47,522.97 $109,052.67 $797,627.01
25 $41,321.07 $115,254.57 $682,372.45
26 $34,766.47 $121,809.17 $560,563.28
27 $27,839.10 $128,736.53 $431,826.74
28 $20,517.77 $136,057.87 $295,768.88
29 $12,780.07 $143,795.57 $151,973.31
30 $4,602.32 $151,973.31 $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 Islington Creek Portsmouth, NH


1500 sqft3900 sqft
Ø selling price$1,142,078$2,429,512
Ø fast selling$1,038,253$2,186,560
Ø high price sale$1,245,904$2,672,463

In 2026, houses in Islington Creek Portsmouth, NH will be offered at an average price of $681 per square foot. A 1,500 sqft home priced at $1,142,078 is 21.25% more expensive per square foot than a 3,900 sqft home priced at $2,429,512. Home prices in Islington Creek Portsmouth, NH 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 $1,681,970. Sellers who can wait longer may achieve a higher price of up to $2,055,741.

FAQ – Home Values in Islington Creek Portsmouth

What is the median home value in Islington Creek Portsmouth in 2026?

In 2026, the typical home value in Islington Creek Portsmouth is about $2,286,900 for an average home size of 3107 square feet. This corresponds to an average price of roughly $681 per square foot.

What is the average cost per square foot in Islington Creek Portsmouth?

In 2026, homes in Islington Creek Portsmouth sell for an average of around $681 per square foot, with a typical range between $646.95 and $715.05 per square foot, depending on the property’s location, condition, and lot size.

What is the average home size in Islington Creek?

The average home size in Islington Creek Portsmouth is about 3107 square feet, with an estimated 2026 value around $2,286,900.



Neighborhoods close to Islington Creek Portsmouth, NH

Alton Center Alton, NH321 $ / ft²
Alton Shores Alton Bay, NH528 $ / ft²
Atkinson Center Atkinson, NH541 $ / ft²
Seminary Hill West Lebanon, NH184 $ / ft²
Sunapee Harbor Sunapee, NH456 $ / ft²
Plainfield Village Plainfield, NH358 $ / ft²
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