There are 28 United States Postal Service post boxes available to the public in zip code 21204. 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 21204 zip code.

Mailboxes in Nearby Zip Codes

Public Collection Box
8422 Bellona Ln
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Public Collection Box
1122 Kenilworth Dr
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Public Collection Box
311 Charles Street Ave
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Public Collection Box
615 Chestnut Ave
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Public Collection Box
7701 Bellona Ave
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Public Collection Box
1107 Kenilworth Dr
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Public Collection Box
1104 Kenilworth Dr
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Public Collection Box
28 Allegheny Ave
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Public Collection Box
800 Kenilworth Dr
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Public Collection Box
110 West Rd
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Public Collection Box
7600 Osler Dr
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Public Collection Box
100 West Rd
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Public Collection Box
6701 N Charles St
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Public Collection Box
22 West Rd
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Public Collection Box
6535 N Charles St
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Public Collection Box
609 Baltimore Ave
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Public Collection Box
111 W Chesapeake Ave
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Public Collection Box
120 W Pennsylvania Ave
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Mailbox in Post Office Lobby
101 W Chesapeake Ave
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Public Collection Box
502 Washington Ave
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Public Collection Box
29 W Susquehanna Ave
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Public Collection Box
820 Dulaney Valley Rd
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Public Collection Box
7801 York Rd
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Public Collection Box
901 Dulaney Valley Rd
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Public Collection Box
7620 York Rd
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Public Collection Box
1021 Dulaney Valley Rd
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Public Collection Box
7402 York Rd
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Public Collection Box
7400 York Rd
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