Average GPS coordinates for San Carlos Postcode location: 23.017, -100.333. (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 (1):
>> San Luis Potosi, 78881 San Carlos, Guadalcazar, GPS coordinates: 23.0167,-100.3333