| Zip Code | City | Population ↓ |
|---|---|---|
| 58554 | Mandan | 28,814 |
| 58563 | New Salem | 1,951 |
| 58631 | Glen Ullin | 989 |
| 58638 | Hebron | 966 |
| 58570 | Solen | 484 |
| 58535 | Flasher | 444 |
| 58566 | Saint Anthony | 255 |
| 58520 | Almont | 253 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 8 ZCTAs in Morton County, North Dakota (US Census).