Average GPS coordinates for Allentown Postcode location: 42.074, -78.059. (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 (1):
>> New York, 14707 Allentown, Allegany, GPS coordinates: 42.0737,-78.0594