7 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 54801 | Spooner | 6,088 |
| 54871 | Shell Lake | 3,296 |
| 54859 | Minong | 2,260 |
| 54817 | Birchwood | 2,247 |
| 54870 | Sarona | 1,756 |
| 54888 | Trego | 1,296 |
| 54875 | Springbrook | 1,293 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 7 ZCTAs in Washburn County, Wisconsin (US Census).