Are home prices going up or down in Contra Costa County, CA?

In Contra Costa County, CA, the typical home sold for $849,500 during May 2026. That is 3% higher than the same stretch a year ago, so prices are up.

$849,500

Typical sale price

▲ 3% vs last year

$845,423

Three years ago

$521

Per square foot

$829,245

Typical asking price

Over the last 36 months the typical sale price in Contra Costa County, CA went from $845,423 to $849,500 — up 0%.

The high point was $865,000, reached in April 2024. Today's typical sale is 2% below that.

Measured by size, homes in Contra Costa County, CA are selling for about $521 per square foot. Price per square foot is the fairer comparison when the mix of what sells shifts from month to month — a run of big houses can push the typical price up without anything actually getting more expensive.

Source: Redfin's published market data for the Contra Costa County, CA area, through May 2026.

Typical sale price, month by month.

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Figures come from Redfin's published market data for the Contra Costa County, CA area, through May 2026. Neighborhood Numbers is an independent data publisher and is not affiliated with Redfin. We update these pages when Redfin publishes, once a month.