Sonoma County, CA Housing Market Brief
county · CA · score computed October 2026
What is Sonoma 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 Sonoma County, CA in its market cycle?
Sonoma 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 Sonoma 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.
Sonoma County, CA housing market data
| Metric | Value | YoY | Source |
|---|---|---|---|
| Median Sale Price | $808K | ▲ +6.6% | Redfin |
| Median Days on Market | 45 days | ▼ -21% | Redfin |
| Months of Supply | 3.7 | ▲ +2.8% | Redfin |
| Homes for Sale | 1,419 | ▼ -4.4% | Redfin |
| Homes Sold | 386 | ▼ -5.6% | Redfin |
| Median Price / Sq Ft | $495 | ▲ +3.5% | Redfin |
How has Sonoma County, CA’s Alpha Score moved?
Markets like Sonoma County, CA
- San Diego County, CA, CAcounty28
- Jackson County, OR, ORcounty30
- Washington County, OR, ORcounty27
- Sacramento County, CA, CAcounty31
- Snohomish County, WA, WAcounty30
- Arapahoe County, CO, COcounty31
- Santa Cruz County, CA, CAcounty23
- Lane County, OR, ORcounty28
- Yolo County, CA, CAcounty28
- Boulder County, CO, COcounty30
Frequently asked questions
Is Sonoma County, CA a buyer's or seller's market?
In the scores computed October 2026, Sonoma County, CA is classified as a Buyer's Market, based on its Alpha Score of 27 out of 100. The classification reflects current price, building, affordability, economic, and rental-yield conditions.
Are home prices rising or falling in Sonoma County, CA?
The median sale price in Sonoma County, CA is $808K, having risen 6.6% over the past year, according to Redfin.
How affordable is Sonoma County, CA?
Sonoma County, CA scores 1 out of 100 on affordability — relatively unaffordable relative to local incomes and prevailing mortgage rates compared with other counties.
What's driving Sonoma County, CA's Alpha Score?
Sonoma County, CA's strongest dimension is Economic Strength (55/100) and its weakest is Affordability (1/100). The Alpha Score is a weighted blend of all five dimensions.
Want the live, interactive view of Sonoma County, CA? Open the full market dashboard — charts, ZIP-level drill-down, and watchlist tracking. Explore the map or read the methodology.