Belgium
Belgium has three official languages: Dutch, French and German. A number of non-official minority languages are spoken as well.
As no census exists, there are no official statistical data regarding the distribution or usage of Belgium's three official languages or their dialects. However, various criteria, including the language(s) of parents, of education, or the second-language status of foreign born, may provide suggested figures. An estimated 60% of the Belgian population are native speakers of Dutch (often referred to as Flemish), and 40% of the population speaks French natively. French-speaking Belgians are often referred to as Walloons, although the French speakers in Brussels are not Walloons.
Dutch in Belgium
Based on differences sources, the number of Dutch speakers in the Brussels-Capital Region can currently be estimated at 5 to 8 percent.
In 2011, on average 7% of the Brussels customers of the largest Brussels telecom operator Belgacom received their invoices in Dutch, 91% in French and 2% in another language. 
The number of Dutch-language invoices turned out to be considerably higher in the northeast of the region than in the southwest (8 to 12% versus 3 to 5%).
Dutch is the official language in Flanders, but there are a number of Flemish municipalities in the Brussels Periphery with a French-speaking majority, which are officially Dutch-speaking with French-language facilities.