Average GPS coordinates for San Marcos Postcode location: 20.858, -101.101. (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 (6):
>> Guanajuato, 36293 San Marcos, Silao, GPS coordinates: 21.0219,-101.0156
>> Guanajuato, 36590 San Marcos, Irapuato, Irapuato, GPS coordinates: 21.0219,-101.0156
>> Guanajuato, 36951 San Marcos, Penjamo, GPS coordinates: 20.22,-101.7425
>> Guanajuato, 37410 San Marcos, Leon, Leon de los Aldama (leon), GPS coordinates: 21.0219,-101.0156
>> Guanajuato, 37899 San Marcos, Allende, GPS coordinates: 21.0219,-101.0156
>> Guanajuato, 38154 San Marcos, Celaya, Rincon de Tamayo, GPS coordinates: 20.8389,-100.8006