Roubaix (French pronunciation: ​[ʁu.bɛ]) is a city in Northern France, located in the Lille metropolitan area. It is a historically mono-industrial commune in the Nord department, which grew rapidly in the 19th century from its textile industries, with most of the same characteristic features as those of English and American boom towns. This former new town has faced many challenges linked to deindustrialisation such as urban decay, with their related economic and social implications, since its major industries fell into decline by the middle of 1970s. Located to the northeast of Lille, adjacent to Tourcoing, Roubaix is the chef-lieu of two cantons and the third largest city in the French region of Nord-Pas-de-Calais-Picardie ranked by population with about 95,000 inhabitants.