- 1 bd
- 1 ba
- 650 sqft

The average Diablo, CA home value is $3,102,551, up 3.8% 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: $3,102,551
1-Year Value Change: +3.8%
(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 Diablo, CA is $3,102,551 as of September 2026. This represents a 1.0% increase compared to last month and a 3.8% increase year-over-year.
Home values in Diablo, CA have increased by 1.0% month-over-month and 3.8% year-over-year.
The median home value in Diablo, CA ($3,102,551) compares to: Contra Costa County ($768,394), California ($761,538), and the U.S. national median ($366,157).