House Prices

House Prices & Home Values Castle Rock, WA 2026


Average Data

average house price$394,088
average size per house1433 ft²
average price per ft²276 $ / ft²

05/23/2026 - The value range (VR) for house prices in Castle Rock, WA is $254/ sqft to $254/ sqft. An average home with 1433 sqft costs approximately $363,982 to $363,982. Castle Rock, WA includes 1 ZIP codes and it is located in Cowlitz county. The lowest prices are found in ZIP 98611, while the highest are in ZIP 98611. The average price per sqare feet is $276. Our analysis is based on 9 property listings.

Avergage prices by ZIP codes Castle Rock

98611265 $ / ft²




Historical development of home values in Castle Rock

Year Estimated value (USD) Change vs. 2025
2010 $183,022 -53.6%
2011 $175,944 -55.4%
2012 $175,470 -55.5%
2013 $182,029 -53.8%
2014 $191,080 -51.5%
2015 $200,887 -49.0%
2016 $211,371 -46.4%
2017 $222,779 -43.5%
2018 $235,096 -40.3%
2019 $245,997 -37.6%
2020 $258,714 -34.4%
2021 $294,259 -25.3%
2022 $343,040 -13.0%
2023 $361,752 -8.2%
2024 $382,679 -2.9%
2025 $394,088 0.0%

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



Example: 100% financing house in Castle Rock

Loan amount: $394,088

Interest rate: 6.00%

Fixed monthly payment: $2,362.76

Breakdown in the 1st month:
Interest portion: $1,970.44  –  Principal portion: $392.32

Yearly breakdown (100% financing)

Year Interest per year ($) Principal per year ($) Remaining balance at year-end ($)
1 $23,513.63 $4,839.45 $389,248.55
2 $23,215.15 $5,137.93 $384,110.62
3 $22,898.25 $5,454.83 $378,655.79
4 $22,561.81 $5,791.27 $372,864.52
5 $22,204.62 $6,148.46 $366,716.05
6 $21,825.39 $6,527.69 $360,188.37
7 $21,422.78 $6,930.30 $353,258.06
8 $20,995.33 $7,357.75 $345,900.32
9 $20,541.52 $7,811.56 $338,088.76
10 $20,059.72 $8,293.36 $329,795.40
11 $19,548.21 $8,804.87 $320,990.53
12 $19,005.14 $9,347.94 $311,642.59
13 $18,428.58 $9,924.50 $301,718.09
14 $17,816.46 $10,536.62 $291,181.47
15 $17,166.58 $11,186.50 $279,994.97
16 $16,476.62 $11,876.46 $268,118.51
17 $15,744.11 $12,608.97 $255,509.55
18 $14,966.42 $13,386.66 $242,122.88
19 $14,140.76 $14,212.32 $227,910.56
20 $13,264.17 $15,088.91 $212,821.65
21 $12,333.52 $16,019.56 $196,802.09
22 $11,345.47 $17,007.61 $179,794.48
23 $10,296.48 $18,056.60 $161,737.88
24 $9,182.79 $19,170.29 $142,567.59
25 $8,000.40 $20,352.68 $122,214.91
26 $6,745.10 $21,607.98 $100,606.93
27 $5,412.36 $22,940.72 $77,666.21
28 $3,997.43 $24,355.65 $53,310.56
29 $2,495.23 $25,857.85 $27,452.71
30 $900.37 $27,452.71 $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 Castle Rock, WA


1500 sqft3900 sqft
Ø selling price$500,941$1,065,636
Ø fast selling$455,401$959,073
Ø high price sale$546,480$1,172,200

In 2026, houses in Castle Rock, WA will be offered at an average price of $276 per square foot. A 1,500 sqft home priced at $500,941 is 23.97% more expensive per square foot than a 3,900 sqft home priced at $1,065,636. Home prices in Castle Rock, WA vary significantly depending on the neighborhood and location. For a quick sale, a 2,700 sqft home should be listed at around $737,749. Sellers who can wait longer may achieve a higher price of up to $901,693.


Castle Rock, WA Travel and Community Guide

Overview

Castle Rock, Washington is a gateway community to Mount St. Helens and a scenic hub on the Cowlitz River.
Located just off I-5, the town offers easy access to outdoor recreation, small-town charm, and Pacific Northwest scenery.
Visitors appreciate its walkable downtown, well-kept parks, and welcoming local businesses.

Things to Do

Top attractions include the Mount St. Helens Visitor Center at Silver Lake, fishing and kayaking on the Cowlitz, and family-friendly trails like the Riverfront Trail.
Birdwatching, biking, and seasonal events make Castle Rock, WA a year-round destination for nature lovers.
Lodging and dining options range from cozy inns and RV parks to cafes serving Northwest comfort food.

Living and Real Estate

The community features affordable real estate, quality schools, and a relaxed lifestyle attractive to commuters and remote workers.
Local services, healthcare, and shops provide everyday convenience while Longview and Kelso expand regional amenities.

Travel Tips

Plan ahead for peak summer and volcano-viewing seasons, and check trail and road conditions before heading into the monument area.
For the best experience in Castle Rock, WA, combine a downtown stroll with a scenic drive to viewpoints showcasing Mount St. Helens.



FAQ – Home Values in Castle Rock

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

In 2026, the typical home value in Castle Rock is about $394,088 for an average home size of 1433 square feet. This corresponds to an average price of roughly $276 per square foot.

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

In 2026, homes in Castle Rock sell for an average of around $276 per square foot, with a typical range between $254 and $254 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 Castle Rock is about 1433 square feet, with an estimated 2026 value around $394,088.



Locations close to Castle Rock, WA

Cathlamet, WA234 $ / ft²
Centerville, WA286 $ / ft²
Chinook, WA331 $ / ft²
Carson, WA265 $ / ft²
Camas, WA251 $ / ft²
Brush Prairie, WA190 $ / ft²
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