4 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 49950 | Mohawk | 1,101 |
| 49805 | Allouez | 351 |
| 49901 | Ahmeek | 227 |
| 49918 | Copper Harbor | 135 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 4 ZCTAs in Keweenaw County, Michigan (US Census).