Prosečne GPS koordinate za poštanski broj 18106: 40.582, -75.591
Spisak gradova:
>> Allentown 18106, Pennsylvania, Lehigh, GPS koordinate: 40.5824,-75.5911
Spisak gradova:
>> Allentown 18106, Pennsylvania, Lehigh, GPS koordinate: 40.5824,-75.5911