ZIP Code 21230 is located in the county of Baltimore city in the state of Maryland. 21230 ZIP Code is spread between the coordinates of +39.2703752 Latitude and -76.62467707 Longitude. 21230 ZIP Code is part of the 410, 667 area code. There is 1 postal office in zip code 21230.
On the below highlighted section you can find the cities which the US Post Office accepts for ZIP code 21230. Always when you mail a package or a letter, be attentive to mention the preferred or acceptable cities. Using any city in the list of unacceptable cities may result in unforseen delays.