Dour is a municipality of Wallonia located in the province of Hainaut, Belgium. On 1 January 2006 the municipality had 16,810 inhabitants…Dour is a municipality of Wallonia located in the province of Hainaut, Belgium. On 1 January 2006 the municipality had 16,810 inhabitants. The total area is 33.32 km², giving a population density of 505 inhabitants per km².