Languages of Belgium
The Kingdom of Belgium has three official languages: Dutch, French, and German. A number of non-official, minority languages and dialects are spoken as well.
Demographics of Belgium
The exact number of French-speakers in Brussels is hard to determine, but it is estimated that 80% of the people living in Brussels use French and 20% use Dutch in their households, as the sole language or secondary language, while Arabic is also largely spoken. See the Brussels article for more details.
In the table are the top 10 countries by origin of the population of Belgium in 2017