Prosečne GPS koordinate za poštanski broj 18101: 40.603, -75.469
Spisak gradova:
>> Allentown 18101, Pennsylvania, Lehigh, GPS koordinate: 40.6026,-75.4691
Spisak gradova:
>> Allentown 18101, Pennsylvania, Lehigh, GPS koordinate: 40.6026,-75.4691