Apg zip code
Zip code in Apg, MD
The location Apg belongs to Harford County, state of Maryland. Apg has been assigned with the zip code 21005.
The location name Apg is listed as unacceptable by the US Postal Service so any mailing should avoid it. Instead you can use Aberdeen Proving Ground, the official name of the location. You can also use any of the following names: Aber Prov Grd.