Baltimore City, located in the state of Maryland, contains a range of ZIP codes that are essential for mail delivery, demographics, mapping, and regional planning. Below is a complete list of ZIP codes associated with this county.

These ZIP codes help identify specific areas and communities within the county, ranging from small towns and villages to broader rural stretches. Whether you’re moving to Baltimore City, setting up a business, or analyzing demographic trends, understanding ZIP code distribution is an essential part of the process.

Zip code
21202
21205
21207
21214
21210
21218
21223
21237
21234
21236
21233
21263
21216
21278
21206
21217
21222
21228
21229
21290
21209
21212
21226
21208
21203
21270
21213
21215
21224
21230
21227
21239
21287
21201
21211
21225
21231
21281
21251

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Baltimore City Information

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ZIP Code to County

Note: Some ZIP codes may span across county borders and may be listed under more than one county. This is common in rural or low-population areas where ZIP code regions are broader.

Source: Data compiled from official county records, USPS ZIP code data, and the United States Census Bureau.

Frequently Asked Questions

How many ZIP codes are in Baltimore City County?

There are approximately 39 ZIP codes in this county. Check the table above for the complete list.

Do ZIP codes in Baltimore City overlap with other counties?

Yes, some ZIP codes may span more than one county. This is especially common in less populated or rural areas.