Enghien (Dutch: Edingen) is a Walloon municipality located in the Belgian province of Hainaut. On January 1, 2006, Enghien had a total population of 11,980. The total area is 40.59 square kilometres (15.67 sq mi), which gives a population density of 295 inhabitants per km². The municipality comprises the city of Enghien, and the towns Marcq (Dutch: Mark) and Petit-Enghien. (Dutch: Lettelingen). It is situated on the language border in the country, and restricted language rights are granted to the Dutch speaking minority (so-called language facilities).