King County, WA Housing Market Brief
county · WA · as of August 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.
Where is King County, WA in its market cycle?
King County, WA is classified as Declining — cooling, with scores declining over recent months. This is a classification of recent (1–12 month) momentum, not a price forecast.
What’s the forecast for King County, WA?
Our model forecasts King County, WA’s home prices to rise about 1.1% over the next 12 months (high confidence).
This is a separate, forward-looking view — not the cycle classification above. See how past forecasts performed on the track record, or the full local forecast with its confidence range on the market page.
King County, WA housing market data
| Metric | Value | YoY |
|---|---|---|
| Median Sale Price | $896K | ▲ +1.9% |
| Median Days on Market | 18 days | ▲ +20% |
| Months of Supply | 3.5 | ▲ +34.6% |
| Homes for Sale | 7,074 | ▲ +19.5% |
| Homes Sold | 2,086 | ▼ -12.4% |
| Median Price / Sq Ft | $499 | ▼ -3.3% |
How has King County, WA’s Alpha Score moved?
Markets like King County, WA
- Chelan County, WA, WAcounty31
- Clackamas County, OR, ORcounty33
- Walton County, FL, FLcounty32
- Gila County, AZ, AZcounty31
- Santa Fe County, NM, NMcounty32
- Ventura County, CA, CAcounty34
- Putnam County, TN, TNcounty33
- Whatcom County, WA, WAcounty36
- Polk County, OR, ORcounty35
- San Luis Obispo County, CA, CAcounty33
Frequently asked questions
Is King County, WA a buyer's or seller's market?
As of August 2026, King County, WA is classified as a Buyer's Market, based on its Alpha Score of 32 out of 100. The classification reflects current price, inventory, 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 $896K, having risen 1.9% over the past year.
How affordable is King County, WA?
King County, WA scores 7 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 Economic Strength (48/100) and its weakest is Affordability (7/100). 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.