Mount Washington zip code

Zip code in Mount Washington, MD

The location Mount Washington belongs to Baltimore County, state of Maryland. Mount Washington has been assigned with the zip code 21209.

The location name Mount Washington is listed as acceptable by the US Postal Service so it can be used in your mailings just fine. You can also use any of the following names: Mount Washington, Mt Washington.
Zip code Type Population
21209 STANDARD 25,470