Mainland zip code
Zip code in Mainland, PA
The location Mainland belongs to Montgomery County, state of Pennsylvania. Mainland has been assigned with the zip code 19451.
Mainland is the official name of the location so if you want to use the US Postal Service you must use that name. You can also use any of the following names: Harleysville.
| Zip code | Type | Population |
|---|---|---|
| 19451 | PO BOX | 62 |
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