How many inhabitants are there in Châtellerault and Grand Châtellerault?

Since January 1, 2017, the urban community of Grand Châtellerault brings together 47 municipalities in which reside nearly 86,000 inhabitants, which is 19.84% of the population of the Department of Vienne. In 2008, the population of Châtellerault, the city-centre, was 33,540.