Redirected from Boulogne-sur-Seine
In 1924, the city changed its name: Boulogne-sur-Seine became officially Boulogne-Billancourt.
... from 25 to 44, 23.3% from 45 to 64, and 13.9% who are 65 years of age or older. The median age is 38 years. For every 100 females there are 94.9 males. For every 100 ...