Home › Counties › Contra Costa County, CA
The median home value in Contra Costa County, CA is $771,709 as of 2026-08-31, down 1.08% from a year earlier.
Median Home Value
$771,709
Year-over-Year
-1.08%
National Rank
#50 of 3071
Contra Costa County ranks 16th out of 58 counties in CA by median home price, and is +228.3% above the U.S. national median of $235,072. Within CA, the typical county has a median home value of $500,264, making Contra Costa County +54.3% above the CA state median.
The typical home value decreased by 2.3%, from $789,696 in May 2026 to $771,709 in Aug 2026.
Monthly Zillow Home Value Index snapshots retained by HomePriceMap. A short history is shown now and grows automatically as each new monthly release arrives.
| Month | Typical home value | Year-over-year change |
|---|---|---|
| May 2026 | $789,696 | -3.1% |
| Jun 2026 | $786,730 | -2.5% |
| Jul 2026 | $781,899 | -1.8% |
| Aug 2026 | $771,709 | -1.1% |
Households here earn a median of $127,229 a year against a typical home value of $771,709 — a price-to-income ratio of 6.1×, past the 5× level generally described as severely unaffordable. That is less affordable than roughly 94% of U.S. counties. (How this is calculated.)
Reporting agencies in Contra Costa County recorded a violent crime rate of 396 per 100,000 residents in 2024 — around the middle of the national range. Property crime runs at 2,216 per 100,000.
Based on 20 reporting cities covering 983,886 residents (FBI UCR data — what this covers).
The median home value in Contra Costa County is $771,709. That's down 1.08% from a year earlier. That is about 228.3% above the U.S. national county median of $235,072, and makes Contra Costa County the 16th most expensive of 58 counties in California.
Median household income here is $127,229, so a typical home costs about 6.1× annual household earnings — expensive compared with other U.S. counties.
Reporting police departments in Contra Costa County recorded 396 violent crimes per 100,000 residents. That figure covers 983,886 residents across 20 reporting cities, so it reflects the county's incorporated areas rather than every community within its borders.
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