There are 9 United States Postal Service post boxes available to the public in zip code 21146. For additional collection boxes in neighboring communities, see the list of post boxes in Maryland.

Are you looking for a post office? See the list of post offices in the 21146 zip code.

Mailboxes in Nearby Zip Codes

Public Collection Box
575 Ritchie Hwy
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Public Collection Box
564 Ritchie Hwy
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Public Collection Box
96 Berrywood Dr
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Public Collection Box
102 Balsam Dr
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Public Collection Box
537 Center Dr
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Public Collection Box
544 Benfield Rd
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Public Collection Box
2 Saint Ives Dr
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Mailbox in Post Office Lobby
21 Magothy Bridge Rd
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Public Collection Box
21 Magothy Bridge Rd
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