Green Castle zip code
Zip code in Green Castle, IA
The location Green Castle belongs to Jasper County, state of Iowa. Green Castle has been assigned with the zip code 50054.
The location name Green Castle is listed as unacceptable by the US Postal Service so any mailing should avoid it. Instead you can use Colfax, the official name of the location.
| Zip code | Type | Population |
|---|---|---|
| 50054 | STANDARD | 3,130 |
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