Average GPS coordinates for San Mariano Postcode location: 16.983, 122.016. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). San Mariano on map:

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Listing cities & postcodes (1):
>> 3332 San Mariano, GPS coordinates: 16.9833,122.0161