Average GPS coordinates for San Marcos Postcode location: 20.617, -97.35. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). San Marcos on map:

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Listing cities & postcodes (3):
>> Veracruz Llave, 91247 San Marcos, Xico, GPS coordinates: 19.4167,-96.95
>> Veracruz Llave, 92560 San Marcos, Tamiahua, GPS coordinates: 21.2167,-97.55
>> Veracruz Llave, 93152 San Marcos, Coyutla, GPS coordinates: 21.2167,-97.55