Royalton zip code
Zip code in Royalton, PA
The location Royalton belongs to Dauphin County, state of Pennsylvania. Royalton has been assigned with the zip code 17057.
The location name Royalton is listed as unacceptable by the US Postal Service so any mailing should avoid it. Instead you can use Middletown, the official name of the location.
| Zip code | Type | Population |
|---|---|---|
| 17057 | STANDARD | 19,240 |
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