5 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 56557 | Mahnomen | 2,758 |
| 56589 | Waubun | 1,760 |
| 56651 | Lengby | 667 |
| 56566 | Naytahwaush | 613 |
| 56516 | Bejou | 352 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 5 ZCTAs in Mahnomen County, Minnesota (US Census).