The arrondissement of Boulogne-Billancourt is an arrondissement of France in the Hauts-de-Seine department in the Île-de-France region. It has 8 communes. Its population is 318,535, and its area is 36.5 km2.
Wikipedia https://en.wikipedia.org/wiki/Arrondissement_of_Boulogne-Billancourt
Coordinates 48°50'8.394" N 2°14'24.742" E
