Gjennomsnittlig GPS-koordinater for postnummer 78811: 23.608, -100.717

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Notering byer:
>> La Joya 78811, San Luis Potosi, Matehuala, GPS-koordinater: 23.5833,-100.7333
>> San Francisco Caleros 78811, San Luis Potosi, Matehuala, GPS-koordinater: 23.6333,-100.7