Baltimore Maryland is covered by a total of 40 ZIP Codes. There are also 9 ZIP Codes that overlap Baltimore but have a different postal city name. The ZIP Codes in Baltimore range from 21201 to 21298. Of the ZIP codes within or partially within Baltimore there are 23 Standard ZIP Codes, 13 Unique ZIP Codes and 4 PO Box ZIP Codes. The total population of ZIP Codes in Baltimore is 598831.
Click on the ZIP Codes in the interactive map to view more information. The map control in the upper right corner can be used to toggle map layers on and off. The red outline is the border of Baltimore and can be turned on and off. Each type of postal code can also be turned on and off.