8 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 98277 | Oak Harbor | 40,338 |
| 98282 | Camano Island | 17,535 |
| 98239 | Coupeville | 7,492 |
| 98236 | Clinton | 7,052 |
| 98260 | Langley | 5,480 |
| 98249 | Freeland | 4,531 |
| 98278 | Oak Harbor | 2,178 |
| 98253 | Greenbank | 2,141 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 8 ZCTAs in Island County, Washington (US Census).