Humboldt zip code
Zip code in Humboldt, MN
The location Humboldt belongs to Kittson County, state of Minnesota. Humboldt has been assigned with the zip code 56731.
Humboldt is the official name of the location so if you want to use the US Postal Service you must use that name.
| Zip code | Type | Population |
|---|---|---|
| 56731 | PO BOX | 95 |
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