Average GPS coordinates for San Isidro Postcode location: -3.606, -80.477. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). San Isidro on map:

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Listing cities & postcodes (1):
>> Tumbes, 24500 San Isidro, Tumbes, GPS coordinates: -3.60556, -80.47694