Home › Counties › Island County, WA
The median home value in Island County, WA is $638,463 as of 2026-08-31, up 0.51% from a year earlier.
Median Home Value
$638,463
Year-over-Year
+0.51%
National Rank
#93 of 3071
Island County ranks 4th out of 39 counties in WA by median home price, and is +171.6% above the U.S. national median of $235,072. Within WA, the typical county has a median home value of $433,836, making Island County +47.2% above the WA state median.
The typical home value decreased by 1.2%, from $645,942 in May 2026 to $638,463 in Aug 2026.
Monthly Zillow Home Value Index snapshots retained by HomePriceMap. A short history is shown now and grows automatically as each new monthly release arrives.
| Month | Typical home value | Year-over-year change |
|---|---|---|
| May 2026 | $645,942 | +0.7% |
| Jun 2026 | $647,157 | +0.6% |
| Jul 2026 | $645,646 | +0.5% |
| Aug 2026 | $638,463 | +0.5% |
Households here earn a median of $90,551 a year against a typical home value of $638,463 — a price-to-income ratio of 7.1×, past the 5× level generally described as severely unaffordable. That is less affordable than roughly 97% of U.S. counties. (How this is calculated.)
Reporting agencies in Island County recorded a violent crime rate of 108 per 100,000 residents in 2024 — lower than most counties nationally. Property crime runs at 857 per 100,000.
Based on 2 reporting cities covering 24,962 residents (FBI UCR data — what this covers).
The median home value in Island County is $638,463. That's up 0.51% from a year earlier. That is about 171.6% above the U.S. national county median of $235,072, and makes Island County the 4th most expensive of 39 counties in Washington.
Median household income here is $90,551, so a typical home costs about 7.1× annual household earnings — expensive compared with other U.S. counties.
Reporting police departments in Island County recorded 108 violent crimes per 100,000 residents. That figure covers 24,962 residents across 2 reporting cities, so it reflects the county's incorporated areas rather than every community within its borders.
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