Prosečne GPS koordinate za poštanski broj 21005: 39.477, -76.121
Spisak gradova:
>> Aberdeen Proving Ground 21005, Maryland, Harford, GPS koordinate: 39.4771,-76.1208
Spisak gradova:
>> Aberdeen Proving Ground 21005, Maryland, Harford, GPS koordinate: 39.4771,-76.1208