5 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 56557 | Mahnomen | 2,797 |
| 56589 | Waubun | 1,939 |
| 56651 | Lengby | 638 |
| 56566 | Naytahwaush | 594 |
| 56516 | Bejou | 307 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 5 ZCTAs in Mahnomen County, Minnesota (US Census).