Gjennomsnittlig GPS-koordinater for postnummer 18330: 47.288, 2.218

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Notering byer:
>> Nançay 18330, Centre, Cher, Arrondissement de Vierzon, GPS-koordinater: 47.3501,2.1929
>> Neuvy-sur-Barangeon 18330, Centre, Cher, Arrondissement de Vierzon, GPS-koordinater: 47.315,2.2534
>> Saint-Laurent 18330, Centre, Cher, Arrondissement de Vierzon, GPS-koordinater: 47.2254,2.202
>> Vouzeron 18330, Centre, Cher, Arrondissement de Vierzon, GPS-koordinater: 47.26,2.222