Contra Costa County, CA Housing Market Brief
county · CA · as of May 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.
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.
Contra Costa County, CA housing market data
| Metric | Value | YoY |
|---|---|---|
| Median Sale Price | $850K | ▲ +3% |
| Median Days on Market | 18 days | ▼ -10% |
| Months of Supply | 2.3 | ▼ -11.5% |
| Homes for Sale | 2,113 | ▼ -14.4% |
| Homes Sold | 900 | ▼ -4.7% |
| Median Price / Sq Ft | $521 | ▲ +1.1% |
| Sale-to-List Ratio | 102.1% | ▲ +0.6% |
How has Contra Costa County, CA’s Alpha Score moved?
Markets like Contra Costa County, CA
- Santa Barbara County, CA, CAcounty40
- Alameda County, CA, CAcounty42
- Sonoma County, CA, CAcounty39
- Marin County, CA, CAcounty38
- Ventura County, CA, CAcounty41
- San Mateo County, CA, CAcounty41
- La Plata County, CO, COcounty39
- Missoula County, MT, MTcounty39
- San Luis Obispo County, CA, CAcounty41
- Boulder County, CO, COcounty37
Frequently asked questions
Is Contra Costa County, CA a buyer's or seller's market?
As of May 2026, Contra Costa County, CA is classified as a Balanced Market, based on its Alpha Score of 40 out of 100. The classification reflects current price, inventory, 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 $850K, having risen 3% over the past year.
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 (63/100) 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.