House Prices

Onset Island Onset, MA House Prices & Home Values 2026


Average Data

average house price$536,177
average size per house1857 ft²
average price per ft²312 $ / ft²

05/23/2026 - The value range (VR) for house prices in Onset Island Onset, MA is $296.4/ sqft to $327.6/ sqft. An average home with 1857 sqft costs approximately $593,898 to $656,414. Onset, MA includes 1 ZIP codes and it is located in Plymouth county. The lowest prices are found in ZIP 02558, while the highest are in ZIP 02558. The average price per sqare feet is $312. Our analysis is based on 5 property listings.

Avergage prices by ZIP codes Onset Island Onset

02558302 $ / ft²




Historical development of home values in Onset Island Onset

Year Estimated value (USD) Change vs. 2025
2010 $249,010 -53.6%
2011 $239,381 -55.4%
2012 $238,737 -55.5%
2013 $247,660 -53.8%
2014 $259,975 -51.5%
2015 $273,317 -49.0%
2016 $287,581 -46.4%
2017 $303,103 -43.5%
2018 $319,860 -40.3%
2019 $334,692 -37.6%
2020 $351,993 -34.4%
2021 $400,355 -25.3%
2022 $466,724 -13.0%
2023 $492,182 -8.2%
2024 $520,655 -2.9%
2025 $536,177 0.0%

Graph: estimated home values in Onset Island Onset over time (USD)



Example: 100% financing house in Onset Island Onset

Loan amount: $536,177

Interest rate: 6.47%

Fixed monthly payment: $3,379.84

Breakdown in the 1st month:
Interest portion: $2,892.67  –  Principal portion: $487.17

Yearly breakdown (100% financing)

Year Interest per year ($) Principal per year ($) Remaining balance at year-end ($)
1 $34,535.48 $6,022.61 $530,154.39
2 $34,133.79 $6,424.29 $523,730.10
3 $33,705.32 $6,852.77 $516,877.33
4 $33,248.27 $7,309.82 $509,567.51
5 $32,760.73 $7,797.36 $501,770.15
6 $32,240.68 $8,317.41 $493,452.74
7 $31,685.94 $8,872.15 $484,580.60
8 $31,094.20 $9,463.88 $475,116.72
9 $30,463.00 $10,095.08 $465,021.63
10 $29,789.70 $10,768.39 $454,253.25
11 $29,071.49 $11,486.59 $442,766.65
12 $28,305.38 $12,252.70 $430,513.95
13 $27,488.18 $13,069.91 $417,444.04
14 $26,616.47 $13,941.62 $403,502.42
15 $25,686.62 $14,871.47 $388,630.95
16 $24,694.75 $15,863.34 $372,767.61
17 $23,636.73 $16,921.36 $355,846.26
18 $22,508.14 $18,049.94 $337,796.31
19 $21,304.28 $19,253.80 $318,542.51
20 $20,020.13 $20,537.95 $298,004.56
21 $18,650.34 $21,907.75 $276,096.81
22 $17,189.18 $23,368.91 $252,727.90
23 $15,630.56 $24,927.52 $227,800.37
24 $13,968.00 $26,590.09 $201,210.29
25 $12,194.55 $28,363.54 $172,846.75
26 $10,302.81 $30,255.27 $142,591.48
27 $8,284.91 $32,273.18 $110,318.30
28 $6,132.42 $34,425.67 $75,892.63
29 $3,836.37 $36,721.72 $39,170.91
30 $1,387.17 $39,170.91 $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 Onset Island Onset, MA


1500 sqft3900 sqft
Ø selling price$611,017$1,299,798
Ø fast selling$555,470$1,169,819
Ø high price sale$666,564$1,429,778

In 2026, houses in Onset Island Onset, MA will be offered at an average price of $312 per square foot. A 1,500 sqft home priced at $611,017 is 24.82% more expensive per square foot than a 3,900 sqft home priced at $1,299,798. Home prices in Onset Island Onset, MA 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 $899,861. Sellers who can wait longer may achieve a higher price of up to $1,099,830.


Onset Island Neighborhood Guide, Onset, MA

Setting and Atmosphere

Onset Island is a secluded, car-free neighborhood set in Onset Bay in Onset, MA, within the coastal town of Wareham.
This private island community offers classic Cape Cod ambiance with sandy beaches, wind-swept pines, and wide-open views over Buzzards Bay.
The pace is relaxed and neighborly, attracting seasonal residents who value privacy and authentic coastal charm.

Access and Lifestyle

Access is by private boat only from Onset Harbor, with resident moorings and dinghy docks serving homeowners and their guests.
Days revolve around tide and weather, with boating, kayaking, paddleboarding, shellfishing, and sunset cruises as everyday rituals.
Without cars or commercial bustle, footpaths link cottages, pocket beaches, and shared open spaces.

Homes and Nearby Amenities

Housing ranges from vintage shingled cottages to updated summer homes, many featuring broad decks and sweeping bay vistas.
Inventory is limited, so real estate opportunities are rare and competitive for buyers seeking a distinctive waterfront retreat near Cape Cod.
Residents pop over to historic Onset Village on the mainland for dining, live music on the bayside bandstand, and Victorian-era charm.
Nearby Route 6 and I-195 keep mainland errands convenient while preserving the island?s tranquil, off-the-grid feeling.



FAQ – Home Values in Onset Island Onset

What is the median home value in Onset Island Onset in 2026?

In 2026, the typical home value in Onset Island Onset is about $536,177 for an average home size of 1857 square feet. This corresponds to an average price of roughly $312 per square foot.

What is the average cost per square foot in Onset Island Onset?

In 2026, homes in Onset Island Onset sell for an average of around $312 per square foot, with a typical range between $296.4 and $327.6 per square foot, depending on the property’s location, condition, and lot size.

What is the average home size in Onset Island?

The average home size in Onset Island Onset is about 1857 square feet, with an estimated 2026 value around $536,177.



Neighborhoods close to Onset Island Onset, MA

Wings Neck Pocasset, MA363 $ / ft²
Sagamore Highlands Sagamore Beach, MA354 $ / ft²
Sandwich Village Sandwich, MA288 $ / ft²
East Chop Oak Bluffs, MA501 $ / ft²
Megansett North Falmouth, MA339 $ / ft²
Hideaway Village Monument Beach, MA1685 $ / ft²
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