Frederick zip code

Zip code in Frederick, MD

The location Frederick belongs to Frederick County, state of Maryland. Frederick has 6 zip codes which you can see in the following table.

Frederick is the official name of the location so if you want to use the US Postal Service you must use that name. You can also use any of the following names: Lewistown.

Zip code Type Population
21701 STANDARD 34,700
21702 STANDARD 41,200
21703 STANDARD 37,740
21704 STANDARD 17,990
21705 PO BOX 758
21709 UNIQUE 0