$2,295
2 bd1 ba- sqft
3781 Marlborough Ave #D010842f9

The average Castle, CA home value is $618,702, down 2.2% over the past year.
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: $618,702
1-year Value Change: -2.2%
(Data through January 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.