Oak Harbor, WA ZIP Codes
2 ZIP codes serve Oak Harbor, Washington: 98277 and 98278. Together they are home to 42,849 residents in 16,142 households. That is more than the 24,362 people counted inside Oak Harbor city limits, because these ZIP codes reach past its boundary.
Oak Harbor city limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 24,362 |
| Households | 9,774 |
| Median household income | $76,084 |
| Median home value | $461,200 |
| Median age | 31.5 |
| Median rent | $1,645 |
All 2 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 42,849 |
| Households (sum of ZIP codes) | 16,142 |
| Median household income, range across ZIP codes | $83,253 (98277) to $83,253 (98277) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $83,253 |
| Homeowners | 59.7% |
| Households with kids under 18 | 32.9% |
| Moved in the past year | 15.4% |
| Carrier routes in EDDM2GO's route library | 29 routes, 17,078 homes (1 of 2 ZIP codes) |
Top facts
- Most residents: 98277 (40,917 people)
- Most new movers: 98277 (15.8% moved in last year)
- Youngest median age: 98278 (22.0 years)
Every ZIP code in Oak Harbor
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 98277 | Oak Harbor | 40,917 | 16,142 | $83,253 | $499,600 | 59.7% | 32.9% | 15.8% | 29 | 17,803 | 17% of its land; mailing city |
| 98278 | Oak Harbor | 1,932 | 0 | — | — | — | — | 7.3% | — | — | mailing city |
A ZIP code is listed for Oak Harbor when at least 10% of its land lies inside Oak Harbor city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Oak Harbor. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Oak Harbor.
Counties
- Island County — 8 ZIP codes
Price a mailing to Oak Harbor ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Oak Harbor, WA?
- 98277 and 98278. A ZIP code is listed for Oak Harbor when at least 10% of its land lies inside Oak Harbor city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Oak Harbor.
- What is the population of Oak Harbor, WA?
- The Census Bureau counts 24,362 residents inside Oak Harbor city limits (ACS 2020–2024). The 2 ZIP codes that serve Oak Harbor hold 42,849 residents in all.
- What is the median household income in Oak Harbor, WA?
- $76,084 inside Oak Harbor city limits, per the Census Bureau. Across its ZIP codes the medians run from $83,253 to $83,253.
- How many carrier routes and mailboxes are in Oak Harbor, WA?
- For the 1 of 2 ZIP codes in EDDM2GO's stored route library: 29 carrier routes reaching 17,078 residential and 725 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.