Average GPS coordinates for Guilford Postcode location: 42.427, -75.482. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Guilford on map:

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Listing cities & postcodes (1):
>> New York, 13780 Guilford, Chenango, GPS coordinates: 42.4269,-75.4823