Tourcoing is a city in northern France on the Belgian border. It is designated municipally as a commune within the department of Nord…Tourcoing is a city in northern France on the Belgian border. It is designated municipally as a commune within the department of Nord. Located to the north-northeast of Lille, adjacent to Roubaix, Tourcoing is the chef-lieu of two cantons and the fourth largest city in the French region of Hauts-de-France ranked by population with about 97,000 inhabitants.