King County, WA Housing Market Brief
county · WA · score computed October 2026
What is King County, WA’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 King County, WA in its market cycle?
King County, WA 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 King County, WA?
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.
King County, WA housing market data
| Metric | Value | YoY | Source |
|---|---|---|---|
| Median Sale Price | $848K | ▼ -3.1% | Redfin |
| Median Days on Market | 28 days | ▲ +12% | Redfin |
| Months of Supply | 3.9 | ▲ +44.4% | Redfin |
| Homes for Sale | 7,240 | ▲ +27.2% | Redfin |
| Homes Sold | 1,858 | ▼ -10.9% | Redfin |
| Median Price / Sq Ft | $486 | ▼ -5.5% | Redfin |
How has King County, WA’s Alpha Score moved?
Markets like King County, WA
- Snohomish County, WA, WAcounty30
- Bonner County, ID, IDcounty29
- Jackson County, OR, ORcounty30
- Boulder County, CO, COcounty30
- Yolo County, CA, CAcounty28
- Whatcom County, WA, WAcounty33
- Nez Perce County, ID, IDcounty34
- Sacramento County, CA, CAcounty31
- Sonoma County, CA, CAcounty27
- Washington County, OR, ORcounty27
Frequently asked questions
Is King County, WA a buyer's or seller's market?
In the scores computed October 2026, King County, WA is classified as a Buyer's Market, based on its Alpha Score of 30 out of 100. The classification reflects current price, building, affordability, economic, and rental-yield conditions.
Are home prices rising or falling in King County, WA?
The median sale price in King County, WA is $848K, having fallen 3.1% over the past year, according to Redfin.
How affordable is King County, WA?
King County, WA scores 2 out of 100 on affordability — relatively unaffordable relative to local incomes and prevailing mortgage rates compared with other counties.
What's driving King County, WA's Alpha Score?
King County, WA's strongest dimension is Inventory Health (60/100) and its weakest is Affordability (2/100). The Alpha Score is a weighted blend of all five dimensions.
Want the live, interactive view of King County, WA? Open the full market dashboard — charts, ZIP-level drill-down, and watchlist tracking. Explore the map or read the methodology.