Average GPS coordinates for Marietta Postcode location: 42.897, -76.281. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Marietta on map:

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Listing cities & postcodes (1):
>> New York, 13110 Marietta, Onondaga, GPS coordinates: 42.8974,-76.2806