- 3 bd
- 2 ba
- 1,200 sqft

The average Castle Rock, WA home value is $479,417, up 1.1% over the past year. (Updated on )
Zillow Home Value Index (ZHVI), built from the ground up by measuring monthly changes in property level Zestimates, captures both the level and home values across a wide variety of geographies and housing types.
Typical Home Values: $479,417
1-Year Value Change: +1.1%
(Data through August 31, 2026)
Zillow is more than a place to browse homes. It’s a place to connect with a local agent, explore financing solutions, schedule home tours, understand your buying and selling power, and more.
The median home value in Castle Rock, WA is $479,417 as of August 2026. This represents a 0.2% increase compared to last month and a 1.1% increase year-over-year.
Home values in Castle Rock, WA have increased by 0.2% month-over-month and 1.1% year-over-year.
The median home value in Castle Rock, WA ($479,417) compares to: Cowlitz County ($418,072), Washington ($591,879), and the U.S. national median ($368,697).