Average GPS coordinates for San Luis Postcode location: 20.684, -101.28. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). San Luis on map:

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Listing cities & postcodes (1):
>> Guanajuato, 37458 San Luis, Leon, Leon de los Aldama (leon), GPS coordinates: 20.6836,-101.28