Average GPS coordinates for Allentown Postcode location: 40.609, -75.52. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Allentown on map:

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Listing cities & postcodes (9):
>> Pennsylvania, 18101 Allentown, Lehigh, GPS coordinates: 40.6026,-75.4691
>> Pennsylvania, 18102 Allentown, Lehigh, GPS coordinates: 40.6068,-75.4781
>> Pennsylvania, 18103 Allentown, Lehigh, GPS coordinates: 40.5891,-75.4645
>> Pennsylvania, 18104 Allentown, Lehigh, GPS coordinates: 40.6018,-75.5225
>> Pennsylvania, 18105 Allentown, Lehigh, GPS coordinates: 40.6934,-75.4712
>> Pennsylvania, 18106 Allentown, Lehigh, GPS coordinates: 40.5824,-75.5911
>> Pennsylvania, 18109 Allentown, Lehigh, GPS coordinates: 40.6366,-75.4405
>> Pennsylvania, 18175 Allentown, Lehigh, GPS coordinates: 40.5856,-75.6211
>> Pennsylvania, 18195 Allentown, Lehigh, GPS coordinates: 40.5843,-75.6248