County ProfileWA
San Juan County
Population: 17,788 · 9 ZIP codes
Demographics
Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.
People
Total population
17,788
People
Median age
57
Housing
Total households
9,015
Income
Median household income
$84,800
Housing
Total housing units
13,990
Employment
Employment rate
50.8%
Education
Bachelor’s degree or higher
53.9%
Healthcare
Insured population
94%
County details
Local time 00:00:26(PT)| Name | San Juan |
|---|---|
| Total ZIP codes | 9total |
| ZIP codes (by type) | 5 Standard4 PO Box |
| Area code | 360, 564 |
| Timezone | Pacific Time (PT) |
| Coordinates | 48.5071904, -123.1037693 |
| Land area | 173.9 sq miles(450.4 km²) |
Map of San Juan county, Washington with ZIP codes
Cities and Communities in San Juan County
Compare the largest cities in San Juan County by population, median income, and growth. Use the table below to analyze key demographic shifts across the region.
| City | Population | Median incomeHousehold | ZIP codes |
|---|---|---|---|
| Eastsound | 4,372 | — | 1ZIPs |
| Lopez Island | 2,752 | — | 1ZIPs |
| Friday Harbor | 2,613 | $80,378 | 1ZIPs |
| Olga | 651 | — | 1ZIPs |
| Orcas | 474 | — | 1ZIPs |
| Deer Harbor | 340 | — | 1ZIPs |
| Shaw Island | 253 | — | 1ZIPs |
| Waldron | 142 | — | 1ZIPs |
| Blakely Island | 41 | — | 1ZIPs |
— Data unavailable or suppressed by the U.S. Census Bureau for areas with small sample sizes to protect individual privacy.
ZIP Codes in San Juan County
Review the most populated postal areas across San Juan County. Use the ranking below to compare resident density and demographic scales between the county's major zones.
| ZIP | City | Median incomeHousehold | Population (ZIP) |
|---|---|---|---|
| 98250 | Friday Harbor | $88,556 | 8,632 |
| 98245 | Eastsound | $95,811 | 4,372 |
| 98261 | Lopez Island | $80,119 | 2,752 |
| 98279 | Olga | $70,417 | 651 |
| 98280 | Orcas | $80,192 | 474 |
| 98243 | Deer Harbor | $139,167 | 340 |
| 98286 | Shaw Island | $74,250 | 253 |
| 98297 | Waldron | $45,625 | 142 |
| 98222 | Blakely Island | $106,333 | 41 |
Data Sources & Citations
The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:
- United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
- United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS