Gennevilliers is located in Paris city, France at the 48.9333, 2.3 coordinates. Distance from Gennevilliers to other cities. are listed below, click on the city name to find distance between. Distance from Gennevilliers to Cergy-Pontoise 20 km, to Saint-Quentin-en-Yvelines 27 km, to Boulogne-Billancourt 12 km. The green marker indicates the location of Gennevilliers.