Average GPS coordinates for Vallarta Postcode location: 28.533, -110.867. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Vallarta on map:

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Listing cities & postcodes (1):
>> Sonora, 84260 Vallarta, Agua Prieta, Agua Prieta, GPS coordinates: 28.5333,-110.8667