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. The municipality consists of the following districts: Blaugies, Dour, Élouges, and Wihéries. Dour is often considered the western end of the sillon industriel, the former industrial backbone of Wallonia. Since 1989, Dour has hosted the annual Dour Festival, a music festival covering various genres.