Average GPS coordinates for San Luis Postcode location: 21.233, -79.808. (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 (2):
>> 23100 San Luis, Pinar del Río, GPS coordinates: 22.28333, -83.76667
>> 92300 San Luis, Santiago de Cuba, GPS coordinates: 20.18333, -75.85000