House Prices

House Prices & Home Values Rock Island, WA 2026


Average Data

average house price$1,201,100
average size per house2126 ft²
average price per ft²566 $ / ft²

05/22/2026 - The value range (VR) for house prices in Rock Island, WA is $239/ sqft to $239/ sqft. An average home with 2126 sqft costs approximately $508,114 to $508,114. Rock Island, WA includes 1 ZIP codes and it is located in Douglas county. The lowest prices are found in ZIP 98850, while the highest are in ZIP 98850. The average price per sqare feet is $566. Our analysis is based on 4 property listings.

Avergage prices by ZIP codes Rock Island

98850223 $ / ft²




Historical development of home values in Rock Island

Year Estimated value (USD) Change vs. 2025
2010 $557,813 -53.6%
2011 $536,242 -55.4%
2012 $534,798 -55.5%
2013 $554,788 -53.8%
2014 $582,374 -51.5%
2015 $612,263 -49.0%
2016 $644,216 -46.4%
2017 $678,986 -43.5%
2018 $716,525 -40.3%
2019 $749,749 -37.6%
2020 $788,507 -34.4%
2021 $896,842 -25.3%
2022 $1,045,516 -13.0%
2023 $1,102,545 -8.2%
2024 $1,166,329 -2.9%
2025 $1,201,100 0.0%

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



Example: 100% financing house in Rock Island

Loan amount: $1,201,100

Interest rate: 6.00%

Fixed monthly payment: $7,201.20

Breakdown in the 1st month:
Interest portion: $6,005.50  –  Principal portion: $1,195.70

Yearly breakdown (100% financing)

Year Interest per year ($) Principal per year ($) Remaining balance at year-end ($)
1 $71,664.77 $14,749.65 $1,186,350.35
2 $70,755.04 $15,659.37 $1,170,690.98
3 $69,789.21 $16,625.21 $1,154,065.77
4 $68,763.80 $17,650.62 $1,136,415.15
5 $67,675.15 $18,739.27 $1,117,675.88
6 $66,519.35 $19,895.07 $1,097,780.81
7 $65,292.27 $21,122.15 $1,076,658.66
8 $63,989.50 $22,424.92 $1,054,233.75
9 $62,606.38 $23,808.04 $1,030,425.71
10 $61,137.95 $25,276.47 $1,005,149.24
11 $59,578.95 $26,835.46 $978,313.78
12 $57,923.80 $28,490.62 $949,823.16
13 $56,166.56 $30,247.85 $919,575.31
14 $54,300.94 $32,113.48 $887,461.84
15 $52,320.25 $34,094.16 $853,367.67
16 $50,217.40 $36,197.02 $817,170.65
17 $47,984.85 $38,429.57 $778,741.08
18 $45,614.59 $40,799.82 $737,941.26
19 $43,098.15 $43,316.27 $694,624.99
20 $40,426.50 $45,987.92 $648,637.07
21 $37,590.06 $48,824.35 $599,812.72
22 $34,578.68 $51,835.73 $547,976.99
23 $31,381.57 $55,032.85 $492,944.14
24 $27,987.26 $58,427.15 $434,516.99
25 $24,383.60 $62,030.81 $372,486.18
26 $20,557.68 $65,856.74 $306,629.44
27 $16,495.78 $69,918.64 $236,710.81
28 $12,183.35 $74,231.06 $162,479.74
29 $7,604.94 $78,809.47 $83,670.27
30 $2,744.15 $83,670.27 $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 Rock Island, WA


1500 sqft3900 sqft
Ø selling price$1,027,291$2,185,326
Ø fast selling$933,901$1,966,794
Ø high price sale$1,120,680$2,403,859

In 2026, houses in Rock Island, WA will be offered at an average price of $566 per square foot. A 1,500 sqft home priced at $1,027,291 is 21.44% more expensive per square foot than a 3,900 sqft home priced at $2,185,326. Home prices in Rock Island, WA vary significantly depending on the neighborhood and location. For a quick sale, a 2,700 sqft home should be listed at around $1,512,919. Sellers who can wait longer may achieve a higher price of up to $1,849,123.

FAQ – Home Values in Rock Island

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

In 2026, the typical home value in Rock Island is about $1,201,100 for an average home size of 2126 square feet. This corresponds to an average price of roughly $566 per square foot.

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

In 2026, homes in Rock Island sell for an average of around $566 per square foot, with a typical range between $239 and $239 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 Rock Island is about 2126 square feet, with an estimated 2026 value around $1,201,100.



Locations close to Rock Island, WA

Soap Lake, WA132 $ / ft²
Stehekin, WA227 $ / ft²
Stratford, WA228 $ / ft²
Riverside, WA182 $ / ft²
Quincy, WA188 $ / ft²
Peshastin, WA458 $ / ft²
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