8 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 98277 | Oak Harbor | 40,917 |
| 98282 | Camano Island | 17,303 |
| 98239 | Coupeville | 7,656 |
| 98236 | Clinton | 7,199 |
| 98260 | Langley | 5,320 |
| 98249 | Freeland | 4,198 |
| 98253 | Greenbank | 2,311 |
| 98278 | Oak Harbor | 1,932 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 8 ZCTAs in Island County, Washington (US Census).