In the latest edition of Statec's "Regards" publication, the national statistics agency highlighted the particular decline of Catholicism in Luxembourg over the past decade and a half.

In 2008, three-quarters of Luxembourg's population said they held religious beliefs and practised an organised religion. In 2021, fewer than half the population said they belonged to a religious denomination.

Religious importance also dropped from 42% to 21% over the same time period, while the number of people who do not consider themselves to be religious has sharply risen.

The number of Catholic baptisms and marriages has dropped since 2008, despite steady growth of the population. Just 41% of those surveyed said they were Catholic.

The secularisation reported by Statec is accompanied by other spiritual beliefs, with 40% of people saying they still believe in a higher power.