Copper Harbor zip code
Zip code in Copper Harbor, MI
The location Copper Harbor belongs to Keweenaw County, state of Michigan. Copper Harbor has been assigned with the zip code 49918.
Copper Harbor is the official name of the location so if you want to use the US Postal Service you must use that name. You can also use any of the following names: Calumet.
| Zip code | Type | Population |
|---|---|---|
| 49918 | PO BOX | 94 |
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