There are 7 United States Postal Service post boxes available to the public in zip code 16421. For additional collection boxes in neighboring communities, see the list of post boxes in Pennsylvania.

Are you looking for a post office? See the list of post offices in the 16421 zip code.

Public Collection Box
5741 Buffalo Rd
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Mailbox in Post Office Lobby
7175 Buffalo Rd
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Public Collection Box
7175 Buffalo Rd
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Wal Mart Supercenter
5741 Buffalo Rd
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Public Collection Box
4415 Buffalo Rd
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Walgreens
4309 Buffalo Rd
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Giant Eagle
4265 Buffalo Rd
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Mailboxes in Nearby Zip Codes