4 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 49950 | Mohawk | 1,062 |
| 49805 | Allouez | 365 |
| 49901 | Ahmeek | 217 |
| 49918 | Copper Harbor | 163 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 4 ZCTAs in Keweenaw County, Michigan (US Census).