Turnhout is a Belgian municipality located in the Flemish province of Antwerp. The municipality comprises only the city of Turnhout proper. On January 1, 2015, Turnhout had a total population of 42,637. The total area is 56.06 km² which gives a population density of 835.5 inhabitants per km². The agglomeration, however, is much larger, accounting up to 81,473 inhabitants. Turnhout is known for its playing card industry, as it houses the head office of the world's largest manufacturer of playing cards, Cartamundi. Turnhout is also the capital of the administrative district with the same name. The Turnhout city council often promotes the city as "the capital of the Kempen area". This designation is entirely unofficial, since the Kempen area is far larger than the Turnhout district and does not form an administrative unit.