Average GPS coordinates for Port Maria Postcode location: 18.377, -76.9. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Port Maria on map:

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Listing cities & postcodes (1):
>> Saint Mary, JMBMY22 Port Maria, GPS coordinates: 18.37739, -76.90013