Portland Corners zip code
Zip code in Portland Corners, IL
The location Portland Corners belongs to Whiteside County, state of Illinois. Portland Corners has been assigned with the zip code 61277.
The location name Portland Corners is listed as unacceptable by the US Postal Service so any mailing should avoid it. Instead you can use Prophetstown, the official name of the location.
| Zip code | Type | Population |
|---|---|---|
| 61277 | STANDARD | 2,850 |
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