Frontier zip code
Zip code in Frontier, WY
The location Frontier belongs to Lincoln County, state of Wyoming. Frontier has been assigned with the zip code 83121.
Frontier 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 |
|---|---|---|
| 83121 | PO BOX | 139 |
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