Average GPS coordinates for San Juan Postcode location: 22.65, -100.7. (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 (3):
>> San Luis Potosi, 78170 San Juan, San Luis Potosi, San Luis Potosi, GPS coordinates: 21.6833,-100.5667
>> San Luis Potosi, 78625 San Juan, Salinas, Salinas de Hidalgo, GPS coordinates: 23.1333,-100.7667
>> San Luis Potosi, 79442 San Juan, Cerritos, Cerritos, GPS coordinates: 23.1333,-100.7667