San Juan County ZIP Codes
San Juan County is a county of Washington.
- ZIP codes
- 9
- Cities & towns
- 9
- Area codes
- 3
- Land area
- 174 sq mi
Every ZIP code in San Juan County
| ZIP code | City |
|---|---|
| 98222 | Blakely Island |
| 98243 | Deer Harbor |
| 98245 | Eastsound |
| 98250 | Friday Harbor |
| 98261 | Lopez Island |
| 98279 | Olga |
| 98280 | Orcas |
| 98286 | Shaw Island |
| 98297 | Waldron |
We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the San Juan County codes above are listed without a column we would have to invent.
Cities and towns in San Juan County
A further 8 places in San Juan County appear in the postal source without a page of its own; their codes are in the table above and each one links to its own page.
Area codes covering San Juan County
Telephone and postal boundaries are drawn by different bodies, so these codes overlap the county without matching its edges.
Where San Juan County's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Scope every ZIP code recorded in San Juan County. Source GeoNames US postal codes (2026-07 postal dump), Census 2024 county Gazetteer (2024 Gazetteer) and geoinfo-dataset (full_dataset) ZIP→NPA (2018 snapshot). Updated . The outline is a convex envelope of ZIP reference points, not a jurisdiction boundary.