Average GPS coordinates for San Sebastian Postcode location: -11.341, -75.315. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). San Sebastian on map:

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Listing cities & postcodes (2):
>> Junín, 12815 San Sebastian, Jauja, GPS coordinates: -11.73711, -75.46705
>> Junín, 12875 San Sebastian, Satipo, GPS coordinates: -10.94389, -75.16361