Dunkirk is a harbour city and a commune in the northernmost part of France, in the department of Nord, 10 kilometres (6 mi) from the Belgian border. Population of the city (commune) at the 1999 census was 70,850 inhabitants (71,300 inhabitants as of February 2004 estimates). Population of the whole metropolitan area (aire urbaine) was 265,974 inhabitants at the 1999 census.