Keymar zip code

Zip code in Keymar, MD

The location Keymar belongs to Frederick County, state of Maryland. Keymar has been assigned with the zip code 21757.

Keymar 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: Detour, Middleburg.

Zip code Type Population
21757 STANDARD 2,630