Gjennomsnittlig GPS-koordinater for postnummer 91414-cedex: 48.528, 2.011
Notering byer:
>> Dourdan 91414-CEDEX, Île-de-France, Essonne, Arrondissement d'Étampes, GPS-koordinater: 48.5277,2.0111
Notering byer:
>> Dourdan 91414-CEDEX, Île-de-France, Essonne, Arrondissement d'Étampes, GPS-koordinater: 48.5277,2.0111