Williamson zip code
Zip code in Williamson, PA
The location Williamson belongs to Franklin County, state of Pennsylvania. Williamson has been assigned with the zip code 17270.
Williamson 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 |
|---|---|---|
| 17270 | PO BOX | 161 |
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