Average GPS coordinates for Rosny-sur-Seine Postcode location: 48.998, 1.631. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Rosny-sur-Seine on map:

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Listing cities & postcodes (1):
>> Île-de-France, 78710 Rosny-sur-Seine, Yvelines, Arrondissement de Mantes-la-Jolie, GPS coordinates: 48.9981,1.6313