Average GPS coordinates for San Carlos Postcode location: 18.542, -95.533. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). San Carlos on map:

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Listing cities & postcodes (2):
>> Veracruz Llave, 94320 San Carlos, Orizaba, Orizaba, GPS coordinates: 19.4,-96.35
>> Veracruz Llave, 96934 San Carlos, Hidalgotitlan, GPS coordinates: 17.6833,-94.7167