High Quality Content by WIKIPEDIA articles! Sains-du-Nord is a commune in the Nord department in northern France. Nord is a department in the far north of France. It was created from the western halves of the historical counties of Flanders and Hainaut (the eastern halves being in Belgium), and the Bishopric of Cambrai. The modern coat of arms was inherited from the County of Flanders. Nord is the only French département in which a Dutch dialect (French Flemish) is spoken along with French as a native language. It is the country's most populous department.