Contra Costa County, CA Property & Market Data

Contra Costa County, California has 368,573 parcels tracked in the Rippleffekt property database, 100% of them mapped to a precise location, a median household income of $126,787, and an unemployment rate of 5.9%.

Contra Costa County at a glance

Rippleffekt tracks 368,573 parcels in Contra Costa County, California. The figures below combine county assessor coverage with federal economic data for the county.

368,573
Parcels tracked
100%
Mapped to location
368,544 parcels
717 sq mi
Land area
514.1 per sq mi
Parcel density
$126,787
Median household income
5.9%
Unemployment rate

California commercial real estate lending

Statewide commercial real estate lending context from FFIEC bank call reports as of 2024-12-31. This reflects the broader California lending environment, not Contra Costa County alone.

129
Banks reporting
$280.7B
Real estate loans
$124.7B
Nonresidential CRE loans

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Sources: county assessor records, U.S. Census ACS and SAIPE, FFIEC bank call reports, and public tax-lien records. Updated 2026-07-29.