Bernissart is a municipality of Wallonia located in the province of Hainaut, Belgium. On January 1, 2024, Bernissart had a total population of 11,…Bernissart is a municipality of Wallonia located in the province of Hainaut, Belgium. On January 1, 2024, Bernissart had a total population of 11,878. The total area is 43.81 km², which gives a population density of 271 inhabitants per km².