San Juan County, WA ZIP Codes
9 ZIP codes cover all or part of San Juan County, Washington. The Census Bureau counts 18,478 residents in the county, with a median household income of $84,800 and a median home value of $799,200. Median household income ranges from $80,119 in 98261 to $95,811 in 98245. Its largest communities include Friday Harbor and Roche Harbor.
San Juan County (Census county figures)
| Measure | Census figure |
|---|---|
| Residents | 18,478 |
| Households | 9,015 |
| Median household income | $84,800 |
| Median home value | $799,200 |
| Median age | 57 |
| Median rent | $1,512 |
All 9 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 18,275 |
| Households (sum of ZIP codes) | 8,903 |
| Median household income, range across ZIP codes | $80,119 (98261) to $95,811 (98245) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $88,909 |
| Homeowners | 77.8% |
| Households with kids under 18 | 17.2% |
| Moved in the past year | 10.5% |
| Carrier routes in EDDM2GO's route library | 14 routes, 7,552 homes (4 of 9 ZIP codes) |
Top facts
- Highest median household income in San Juan County: 98245 ($95,811)
- Most residents: 98250 (9,254 people)
- Highest homeownership: 98261 (80.6% own their home)
- Most households with kids: 98250 (17.9% of households)
- Most new movers: 98250 (11.6% moved in last year)
- Youngest median age: 98245 (54.2 years)
- Highest median home value: 98250 ($801,200)
Every ZIP code in San Juan County
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 98250 | Friday Harbor | 9,254 | 4,425 | $88,556 | $801,200 | 76.3% | 17.9% | 11.6% | 6 | 4,252 | 100% of its land |
| 98245 | Eastsound | 4,265 | 2,096 | $95,811 | $772,600 | 80.2% | 16.9% | 10.0% | 4 | 1,762 | 100% of its land |
| 98261 | Lopez Island | 2,984 | 1,468 | $80,119 | $787,800 | 80.6% | 16.7% | 7.7% | 3 | 1,543 | 100% of its land |
| 98279 | Olga | 680 | 342 | $70,417 | $937,500 | 69.9% | 23.4% | 16.8% | 1 | 353 | 100% of its land |
| 98280 | Orcas | 442 | 242 | $80,192 | $1,031,300 | 83.9% | 8.7% | 5.2% | — | — | 100% of its land |
| 98243 | Deer Harbor | 327 | 144 | $139,167 | $1,094,800 | 66.7% | 24.3% | 6.7% | — | — | 100% of its land |
| 98286 | Shaw Island | 155 | 87 | $74,250 | $675,000 | 72.4% | 4.6% | 3.2% | — | — | 100% of its land |
| 98222 | Blakely Island | 121 | 58 | $106,333 | $801,500 | 74.1% | 0.0% | 21.5% | — | — | 100% of its land |
| 98297 | San Juan County | 47 | 41 | $45,625 | $405,600 | 95.1% | 0.0% | 0.0% | — | — | 100% of its land |
A ZIP code is listed for San Juan County when at least 10% of its land is in the county, when it holds at least 10% of the county's land, or when the county is its main county. Totals add up whole ZIP codes, including parts that cross the county line; the Census county figures above do not.
Cities and communities
- Friday Harbor — 2,728 residents · 1 ZIP code
- Roche Harbor — 778 residents · 1 ZIP code
Price a mailing to San Juan County ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in San Juan County, WA?
- 98250, 98245, 98261, 98279, 98280, 98243, 98286, 98222 and 98297. Some cross the county line; the table shows each ZIP's share of land in the county.
- What is the population of San Juan County?
- 18,478 residents in 9,015 households (ACS 5-year estimates, 2020–2024).
- What is the median household income in San Juan County?
- $84,800 for the county as a whole. Its ZIP codes range from $80,119 (98261) to $95,811 (98245).
- Which San Juan County ZIP code has the highest median household income?
- 98245, at $95,811, among ZIP codes with at least 1,000 residents.
- How many carrier routes and mailboxes are in San Juan County?
- For the 4 of 9 ZIP codes in EDDM2GO's stored route library: 14 carrier routes reaching 7,552 residential and 350 business mailboxes. The route map loads the rest when you search them.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.