Average GPS coordinates for San Antonio Texas Postcode location: 18.133, -100.971. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). San Antonio Texas on map:

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Listing cities & postcodes (1):
>> Guerrero, 40729 San Antonio Texas, Coyuca de Catalan, GPS coordinates: 18.1333,-100.9708