Average GPS coordinates for Ithaca Postcode location: 42.439, -76.485. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Ithaca on map:

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Listing cities & postcodes (4):
>> New York, 14850 Ithaca, Tompkins, GPS coordinates: 42.4028,-76.484
>> New York, 14851 Ithaca, Tompkins, GPS coordinates: 42.4607,-76.5054
>> New York, 14852 Ithaca, Tompkins, GPS coordinates: 42.4451,-76.4672
>> New York, 14853 Ithaca, Tompkins, GPS coordinates: 42.4474,-76.4837