Sonoma County, CA Housing Market Brief
county · CA · as of May 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.
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.
Sonoma County, CA housing market data
| Metric | Value | YoY |
|---|---|---|
| Median Sale Price | $849K | ▲ +2.4% |
| Median Days on Market | 35 days | ▼ -7.9% |
| Months of Supply | 3.5 | ▼ -18.6% |
| Homes for Sale | 1,322 | ▼ -16.8% |
| Homes Sold | 381 | ▲ +2.7% |
| Median Price / Sq Ft | $517 | ▲ +0.2% |
| Sale-to-List Ratio | 100.3% | ▲ +1.1% |
How has Sonoma County, CA’s Alpha Score moved?
Markets like Sonoma County, CA
- Alameda County, CA, CAcounty42
- Contra Costa County, CA, CAcounty40
- San Mateo County, CA, CAcounty41
- Arlington County, VA, VAcounty40
- Fairfax County, VA, VAcounty41
- Santa Barbara County, CA, CAcounty40
- Orange County, CA, CAcounty42
- Albany County, WY, WYcounty39
- Yellowstone County, MT, MTcounty42
- Marin County, CA, CAcounty38
Frequently asked questions
Is Sonoma County, CA a buyer's or seller's market?
As of May 2026, Sonoma County, CA is classified as a Buyer's Market, based on its Alpha Score of 39 out of 100. The classification reflects current price, inventory, 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 $849K, having risen 2.4% over the past year.
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 (62/100) 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.