Gjennomsnittlig GPS-koordinater for postnummer 91340: 48.591, 2.219
Notering byer:
>> Ollainville 91340, Île-de-France, Essonne, Arrondissement de Palaiseau, GPS-koordinater: 48.5908,2.2194
Notering byer:
>> Ollainville 91340, Île-de-France, Essonne, Arrondissement de Palaiseau, GPS-koordinater: 48.5908,2.2194