| Zip Code | City | Population ↓ |
|---|---|---|
| 54143 | Marinette | 15,119 |
| 54157 | Peshtigo | 5,951 |
| 54114 | Crivitz | 5,926 |
| 54151 | Niagara | 3,411 |
| 54177 | Wausaukee | 2,913 |
| 54112 | Coleman | 2,716 |
| 54156 | Pembine | 1,502 |
| 54159 | Porterfield | 1,381 |
| 54104 | Athelstane | 1,027 |
| 54102 | Amberg | 763 |
| 54119 | Dunbar | 715 |
| 54125 | Goodman | 430 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 12 ZCTAs in Marinette County, Wisconsin (US Census).