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The average Castro Valley, CA home value is $1,088,972, up 1.2% over the past year, and homes go to pending in around 17 days. (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: $1,088,972
1-Year Value Change: +1.2%
(Data through September 30, 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 Castro Valley, CA is $1,088,972 as of September 2026. This represents a 0.2% increase compared to last month and a 1.2% increase year-over-year.
Home values in Castro Valley, CA have increased by 0.2% month-over-month and 1.2% year-over-year.
The median home value in Castro Valley, CA ($1,088,972) compares to: Alameda County ($1,044,951), California ($761,538), and the U.S. national median ($366,157).