Contra Costa County, CA Housing Market Brief
county · CA · score computed October 2026
What is Contra Costa County, CA’s Alpha Score?
The Alpha Score is a composite 0–100 index of market strength, a weighted blend of five dimensions. See the methodology.
Population band 5 of 5 (population 103,008–9,808,667) · comparable within its band
Where is Contra Costa County, CA in its market cycle?
Contra Costa County, CA is classified as Recovering — turning back up after a downturn. This is a classification of recent (1–12 month) momentum, not a price forecast.
What’s the forecast for Contra Costa County, CA?
County-level forecasts are paused (since Oct 18, 2026). The new public-data model we built to replace them didn't pass our accuracy test, and we won't publish forecasts again until a model does.
Contra Costa County, CA housing market data
| Metric | Value | YoY | Source |
|---|---|---|---|
| Median Sale Price | $778K | ▼ -0.2% | Redfin |
| Median Days on Market | 28 days | ▼ -12.5% | Redfin |
| Months of Supply | 2.6 | ▲ +4% | Redfin |
| Homes for Sale | 2,177 | ▼ -4.3% | Redfin |
| Homes Sold | 846 | ▼ -6.6% | Redfin |
| Median Price / Sq Ft | $495 | ▼ -0.6% | Redfin |
How has Contra Costa County, CA’s Alpha Score moved?
Markets like Contra Costa County, CA
- El Dorado County, CA, CAcounty21
- Jefferson County, CO, COcounty23
- Alameda County, CA, CAcounty21
- Multnomah County, OR, ORcounty21
- Solano County, CA, CAcounty22
- Whitman County, WA, WAcounty20
- San Francisco County, CA, CAcounty22
- Nevada County, CA, CAcounty23
- Coos County, OR, ORcounty19
- Monterey County, CA, CAcounty24
Frequently asked questions
Is Contra Costa County, CA a buyer's or seller's market?
In the scores computed October 2026, Contra Costa County, CA is classified as a Deep Buyer's Market, based on its Alpha Score of 21 out of 100. The classification reflects current price, building, affordability, economic, and rental-yield conditions.
Are home prices rising or falling in Contra Costa County, CA?
The median sale price in Contra Costa County, CA is $778K, having held roughly steady over the past year, according to Redfin.
How affordable is Contra Costa County, CA?
Contra Costa County, CA scores 2 out of 100 on affordability — relatively unaffordable relative to local incomes and prevailing mortgage rates compared with other counties.
What's driving Contra Costa County, CA's Alpha Score?
Contra Costa County, CA's strongest dimension is Economic Strength (55/100) and its weakest is Affordability (2/100). The Alpha Score is a weighted blend of all five dimensions.
Want the live, interactive view of Contra Costa County, CA? Open the full market dashboard — charts, ZIP-level drill-down, and watchlist tracking. Explore the map or read the methodology.