ZIP Codes in Baltimore, MD

Baltimore uses 25 ZIP codes, all in Baltimore, Anne Arundel Counties. Pick one below for details, or look up the full nine-digit ZIP+4 for a specific street address.

All 25 Baltimore ZIP codes

ZIP	Type	County	Population
21201	standard	Baltimore	18,307
21202	standard	Baltimore	20,683
21205	standard	Baltimore	13,013
21206	standard	Baltimore	48,902
21209	standard	Baltimore	30,126
21210	standard	Baltimore	14,134
21211	standard	Baltimore	14,969
21212	standard	Baltimore	33,974
21213	standard	Baltimore	28,058
21214	standard	Baltimore	21,092
21215	standard	Baltimore	52,229
21216	standard	Baltimore	29,426
21217	standard	Baltimore	30,792
21218	standard	Baltimore	44,014
21223	standard	Baltimore	19,572
21224	standard	Baltimore	47,465
21229	standard	Baltimore	46,679
21230	standard	Baltimore	32,977
21231	standard	Baltimore	14,969
21233	standard	Baltimore	—
21239	standard	Baltimore	27,346
21240	standard	Anne Arundel	—
21250	standard	Baltimore	2,834
21251	standard	Baltimore	191
21287	standard	Baltimore	—

Finding a ZIP+4 in Baltimore

Knowing which of these 25 ZIP codes covers an address only gets you partway. The four-digit extension identifies the specific delivery point — typically one side of one block. Two houses facing each other on the same Baltimore street almost always have different ZIP+4 codes even though they share all five leading digits.

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