Pioneer zip code
Zip code in Pioneer, IA
The location Pioneer belongs to Humboldt County, state of Iowa. Pioneer has been assigned with the zip code 50541.
The location name Pioneer is listed as unacceptable by the US Postal Service so any mailing should avoid it. Instead you can use Gilmore City, the official name of the location.
| Zip code | Type | Population |
|---|---|---|
| 50541 | STANDARD | 760 |
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