
Brazilian nationals topped the list of new citizens, with approximately 11,200 individuals receiving a Luxembourgish passport over this period. They were followed by citizens from France (8,350), Portugal (7,000), Belgium (3,700), and the United States (3,500).
Within the group of former Brazilian nationals, the largest share was found among those aged 30 to 44, with 4,800 individuals in this category.
Among nationals of countries outside the American continent, the highest numbers of new Luxembourgish citizens came from Syria, Iraq, India, Morocco, and Turkey.
Luxembourgish nationality can be acquired through three main routes: by option (which also covers the "droit du sol" for children born in Luxembourg), by naturalisation (which requires five years of residence, an A2-level language test, and completion of a 24-hour "living together in Luxembourg" course), or by re-acquisition of citizenship.
The statistics were provided by Prime Minister Luc Frieden, Minister of Justice Élisabeth Margue, and Minister of Education Claude Meisch in response to a parliamentary question from Democratic Party (DP) MPs André Bauler and Gilles Baum.