Average GPS coordinates for San Pedro Postcode location: 16.375, -92.917. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). San Pedro on map:

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Listing cities & postcodes (2):
>> Coahuila De Zaragoza, 25508 San Pedro, San Buenaventura, San Buenaventura, GPS coordinates: 16.65,-93.1333
>> Coahuila De Zaragoza, 26017 San Pedro, Piedras Negras, Piedras Negras, GPS coordinates: 16.1,-92.7