Average GPS coordinates for San Juan Postcode location: 20.125, -87.998. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). San Juan on map:

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Listing cities & postcodes (2):
>> Quintana Roo, 77749 San Juan, Solidaridad, GPS coordinates: 20.5167,-87.65
>> Quintana Roo, 77890 San Juan, Jose Maria Morelos, GPS coordinates: 19.7333,-88.345