Dutch and French are spoken widely all over Belgium, but in many regions one language is more popular than the other. In the north, the Flemish region (Bruges, Ghent, Antwerp), Dutch is the primary language. In Wallonia, the Southern region (Charleroi, Liège, Namur, Mons), French is the primary language.
In the Brussels capital region, French is the primary language.
Yellow – Flanders, Dutch
Red – Wallonia and Brussels, French.
Blue – German