Average GPS coordinates for San Antonio Postcode location: 20.983, -89.158. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). San Antonio on map:

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Listing cities & postcodes (4):
>> Yucatan, 97113 San Antonio, Merida, Merida, GPS coordinates: 20.8667,-89.2833
>> Yucatan, 97229 San Antonio, Merida, Merida, GPS coordinates: 20.8667,-89.2833
>> Yucatan, 97615 San Antonio, Panaba, GPS coordinates: 21.2833,-88.9667
>> Yucatan, 97783 San Antonio, Valladolid, Valladolid, GPS coordinates: 20.9167,-89.1