| ZIP Codes: | 9 ZIP Codes (5 Standard, 4 PO Box, 0 Unique) [See All] |
| Area Codes: | 360 / 564 |
| Timezone: | Pacific (GMT -08:00) |
| Local Time: | 11:55:36 PM |
| Population: | 18,275 [See All] |
| FIPS: | 53055 |
| Land Area: | 170 sq mi |
| Water Area: | 120 sq mi |
| Coordinates: | 48.5994, -122.9368 |
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18,275 residents live across 9 ZIPs covering 170 sq mi, served by 9 distinct USPS-recognized cities.
Population moved from 15,740 to 18,275 from 2014 to 2024 — a +16.1% change. 6 ZIPs gained residents, 3 lost.
The county's wealthiest ZIP 98243 (Deer Harbor, $139,167 median) and poorest ZIP 98279 (Olga, $70,417) are 8.1 miles apart — a 2.0× income gap across local geography.
Median home values vary 1.6× across this county — from $675,000 in 98286 (Shaw Island) to $1,094,800 in 98243 (Deer Harbor).
Density varies 8× across the county — from 18 people/sq mi in 98222 (Blakely Island) to 151 in 98250 (Friday Harbor).
Educational attainment ranges from 44.3% bachelor's+ in 98286 (Shaw Island) to 72.1% in 98243 (Deer Harbor) — the breadth of educational profiles across the area.
Within Washington, this is the #32 most populous of 39 counties and ranks #14 for median household income with the #8 fastest decade growth .
Weighted by population, the typical household earns about $88,786 across the county — reflecting what a typical resident sees, not a simple ZIP average.
54.1% of adults age 25+ hold a bachelor's degree or higher (8,201 of 15,147 reporting).
5 Standard delivery, 4 PO Box only, 0 single-entity Unique ZIPs serve this county.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 98250 | Friday Harbor | Standard | 9,254 | $88,556 | 61.3 | 19.1% |
| 98245 | Eastsound | Standard | 4,265 | $95,811 | 38.2 | 13.9% |
| 98261 | Lopez Island | Standard | 2,984 | $80,119 | 29.7 | 19.5% |
| 98279 | Olga | Standard | 680 | $70,417 | 14.0 | 11.5% |
| 98280 | Orcas | PO Box | 442 | $80,192 | 6.2 | 20.1% |
| 98243 | Deer Harbor | PO Box | 327 | $139,167 | 2.2 | -19.5% |
| 98286 | Shaw Island | PO Box | 155 | $74,250 | 7.7 | -29.9% |
| 98222 | Blakely Island | Standard | 121 | $106,333 | 6.7 | 128.3% |
| 98297 | Waldron | PO Box | 47 | $45,625 | 4.5 | -30.9% |