Average GPS coordinates for San Carlos Postcode location: 19.403, -98.097. (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):
>> Tlaxcala, 90503 San Carlos, Huamantla, Huamantla, GPS coordinates: 19.4033,-98.0965