Nempont-Saint-FirminNempont-Saint-Firmin is a commune in the Pas-de-Calais department in the Hauts-de-France region of France in the valley of the Authie river, the border with the department of the Somme, some 8 miles south of Montreuil-sur-Mer.WWW nempont-saint-firmin.comPopulationThe inhabitants of the town of Nempont-Saint-Firmin are called Nempontois, Nempontoises in French.