Average GPS coordinates for San Luis Postcode location: -16.372, -71.966. (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):
>> Arequipa, 04108 San Luis, Arequipa, GPS coordinates: -16.32056, -72.10139
>> Arequipa, 04100 San Luis, Arequipa, GPS coordinates: -16.42383, -71.82993