- 2 bd
- 1 ba
- 1,078 sqft

The average Contra Costa County, CA home value is $766,821, down 0.3% over the past year, and homes go to pending in around 24 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: $766,821
1-Year Value Change: -0.3%
(Data through October 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 Contra Costa County, CA is $766,821 as of October 2026. This represents a 0.1% increase compared to last month and a 0.3% decrease year-over-year.
The median home value in Contra Costa County, CA ($766,821) compares to California ($760,612) and the U.S. national median ($364,288).
The cities with the highest median home values in Contra Costa County, CA include: Diablo ($3,102,551), Alamo ($2,529,452), Orinda ($1,942,797), Lafayette ($1,907,310), Danville ($1,821,427). These cities represent the most expensive areas within the county.