Châlons-en-Champagne forms, with other 4 "communes", the urban area of Châlons-en-Champagne with a population of 57,571 inhabitants (2014) and an area of . This urban area is the centre of the metropolitan area of Châlons-en-Champagne, formed by 66 "communes", with a population of 81,486 inhabitants (2014) and an area of .