29Alpha

Island County, WA Housing Market Brief

county · WA · score computed October 2026

Buyer's

What is Island 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.

Price Momentum20%
●33
Inventory Health25%
●41

Population band 4 of 5 (population 39,232–102,612) · comparable within its band

Affordability20%
●3
Economic Strength20%
●54
Rental Yield15%
●5

Where is Island County, WA in its market cycle?

EmergingGrowingMaturePeakingDecliningRecovering

Island 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 Island 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.

Island County, WA housing market data

MetricValueYoYSource
Median Sale Price$617K▼ -5.1%Redfin
Median Days on Market43 days▼ -4.4%Redfin
Months of Supply4.2▲ +44.8%Redfin
Homes for Sale440▲ +10.6%Redfin
Homes Sold106▼ -21.5%Redfin
Median Price / Sq Ft$374▼ -2.4%Redfin

How has Island County, WA’s Alpha Score moved?

Now: 29
2-period trend
Median sale price · 12 mo

Markets like Island County, WA

Frequently asked questions

Is Island County, WA a buyer's or seller's market?

In the scores computed October 2026, Island County, WA is classified as a Buyer's Market, based on its Alpha Score of 29 out of 100. The classification reflects current price, building, affordability, economic, and rental-yield conditions.

Are home prices rising or falling in Island County, WA?

The median sale price in Island County, WA is $617K, having fallen 5.1% over the past year, according to Redfin.

How affordable is Island County, WA?

Island County, WA scores 3 out of 100 on affordability — relatively unaffordable relative to local incomes and prevailing mortgage rates compared with other counties.

What's driving Island County, WA's Alpha Score?

Island County, WA's strongest dimension is Economic Strength (54/100) and its weakest is Affordability (3/100). The Alpha Score is a weighted blend of all five dimensions.

Want the live, interactive view of Island County, WA? Open the full market dashboard — charts, ZIP-level drill-down, and watchlist tracking. Explore the map or read the methodology.