Gjennomsnittlig GPS-koordinater for postnummer 78640: 23.263, -102.046

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Notering byer:
>> Illescas 78640, San Luis Potosi, Santo Domingo, GPS-koordinater: 23.2167,-102.1167
>> Providencia 78640, San Luis Potosi, Santo Domingo, GPS-koordinater: 23.15,-102
>> San Antonio Del Salado 78640, San Luis Potosi, Santo Domingo, GPS-koordinater: 23.2625,-102.0458
>> Santa Matilde 78640, San Luis Potosi, Santo Domingo, GPS-koordinater: 23.3167,-101.85
>> Zancarron 78640, San Luis Potosi, Santo Domingo, GPS-koordinater: 23.3667,-102.2167