Average GPS coordinates for San Pedro Postcode location: 23.572, -99.1. (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 (3):
>> Tamaulipas, 87313 San Pedro, Matamoros, Matamoros (heroica Matamoros), GPS coordinates: 24.1667,-99.2
>> Tamaulipas, 89366 San Pedro, Tampico, Tampico, GPS coordinates: 24.1667,-99.2
>> Tamaulipas, 89725 San Pedro, Gonzalez, GPS coordinates: 22.3833,-98.9