Average GPS coordinates for San Juan Postcode location: 16.851, -96.612. (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):
>> Oaxaca, 70680 San Juan, Salina Cruz, Salina Cruz, GPS coordinates: 16.9667,-95.9167
>> Oaxaca, 71076 San Juan, San Pedro Amuzgos, GPS coordinates: 16.7936,-96.96
>> Oaxaca, 71200 San Juan, Zimatlan de Alvarez, Zimatlan de Alvarez, GPS coordinates: 16.7936,-96.96