Average GPS coordinates for San Andres Postcode location: 21.775, -105.233. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). San Andres on map:

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Listing cities & postcodes (2):
>> Nayarit, 63502 San Andres, Tepic, GPS coordinates: 21.6167,-104.9
>> Nayarit, 63561 San Andres, Santiago Ixcuintla, GPS coordinates: 21.9333,-105.5667