Average GPS coordinates for San Martin Postcode location: -13.142, -74.066. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). San Martin on map:

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Listing cities & postcodes (3):
>> Ayacucho, 05820 San Martin, Cangallo, GPS coordinates: -13.57405, -74.59282
>> Ayacucho, 05260 San Martin, La Mar, GPS coordinates: -13.18333, -73.68333
>> Ayacucho, 05210 San Martin, La Mar, GPS coordinates: -12.66932, -73.92276