
Luxembourg is a secular nation in Western Europe with a surprising religious diversity. While the country is historically Roman Catholic, and Catholicism remains the predominant faith, the number of people identifying as Catholic has been declining. In 2002, 94% of the population was Catholic, but by 2018, this number had dropped to 63.8%. Other religions present in Luxembourg include Protestantism, Islam, Judaism, Buddhism, and Orthodox Christianity.
| Characteristics | Values |
|---|---|
| Percentage of Catholics | 63.8% (2018), 68% (2022), 70.4% (2010), 87% (2000), 90%+ (1979 estimate) |
| Number of Catholics | 300,000+ (2022), 296,000 (2010 estimate), 399,000 (2000 estimate) |
| Recognition by the State | Officially mandated and recognised by the state, supported by the government since 1801 |
| Other Religions | Protestant minority, Islam, Judaism, Buddhism, Hinduism, Greek and Russian Eastern Orthodox Christianity, Voodoo/Vodun, Baha'i Faith, Universal Church, Jehovah's Witnesses, Mormonism |
| Percentage of Non-Religious People | 26.8% (2010), 30%+ (2022), 22% (Eurobarometer poll) |
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What You'll Learn

Luxembourg is a secular state
Luxembourg's approach to religion has evolved over the past 200 years, reducing the separation of church and state. The state currently recognises several religions, including Catholicism, Judaism, Greek and Russian Eastern Orthodox Christianity, and Protestantism, and supports these denominations in exchange for a hand in their affairs. This status first emerged from Napoleon's Concordat of 1801 and has continued despite Luxembourg's changing ownership. The Catholic Church has received state support since 1801, and the government provides for state payment of salaries and pensions for clergy of religious groups that sign a convention with them.
While Luxembourg is officially secular, it has been challenging to establish and operate non-religious NGOs and human rights organisations in the country. It is even illegal to advocate for secularism or the separation of church and state. The constitution guarantees freedom of religion, and there is no state religion. However, the government has signed conventions with recognised religious communities, including the Catholic Church, the Anglican Church, the Reformed Protestant Church, the Orthodox Church, Jewish congregations, and the
Luxembourg's religious landscape is diverse, with a Catholic majority, a Protestant minority, and a growing presence of other religions such as Islam, Judaism, and Buddhism. Protestantism was outlawed in Luxembourg until 1768, and it is now practised by a significant section of the population, with various denominations and churches active in the country. The Muslim population has sharply risen over the past few decades, and Islam is one of the officially recognised religions. Luxembourg's Jewish community dates back to the 13th century, making it the longest-practised minority religion.
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Catholicism is the dominant religion
According to various estimates, between 64% and 87% of the population identify as Catholic. A 2010 Pew Research Center study placed the figure at 70.4%, while a CIA Factbook estimate from 2000 put it at 87%. More recently, in 2022, it was estimated that 68% of the population is Catholic. This decline may be attributed to an increasing number of people becoming estranged from the Church's belief system, with over 30% identifying as agnostic, atheist, or having no religious belief.
The country's religious landscape is also characterised by a Protestant minority, with Protestantism outlawed in Luxembourg until 1768. Today, Protestantism constitutes around 3% of the population, including Lutheranism, Calvinism, Anglicanism, and diverse Evangelical Protestant churches.
Luxembourg also recognises other religions such as Islam, Judaism, and Buddhism, although their presence is relatively limited. The country guarantees religious freedom, including the freedom to manifest religious opinions, except in cases where crimes are committed under the guise of these freedoms.
The dominance of Catholicism in Luxembourg is further illustrated by the numerous Catholic holidays celebrated in the country, many of which are deeply intertwined with Luxembourgish culture. Additionally, the country is dotted with Catholic churches, providing physical evidence of the religion's strong presence.
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Religious affiliation statistics are banned
Luxembourg is a secular state with religious diversity, but it has a predominantly Catholic population with deep-rooted traditions. In 2018, 63.8% of the population were Catholics, 1.8% were Protestants, 3% were Orthodox Christians, and 4.6% adhered to other Christian denominations. The state currently recognizes the Catholic Church, Judaism, Greek and Russian Eastern Orthodox Christianity, and Protestantism as officially mandated religions.
Despite the majority of the population being Catholic, religious affiliation statistics are banned in Luxembourg. This is due to the country's approach to religion, which has evolved differently from France's official position of laïcité in the past 200 years, reducing the separation of church and state. While the exact reasons for banning religious affiliation statistics are unclear, it is possible that the government aims to further blur the lines between church and state by preventing the collection and dissemination of data on religious groups.
The ban on religious affiliation statistics in Luxembourg may also be a result of the country's recognition of multiple religions. By forbidding the collection and publication of data on religious groups, the government can avoid potential conflicts or disputes that may arise from comparing the sizes or influence of different religious communities. Additionally, with a growing number of people identifying as agnostic, atheist, or having no religious belief, the government may aim to respect their choice by not collecting or publishing data that could potentially identify them.
In 2019, it was reported that around 21% of the 198 countries evaluated banned at least one religion-related group. The repercussions for membership in banned religious groups can vary, including detention, raids, and seizure of property. Some countries may also prevent adherents from designating their religious affiliation on national identity cards, not legally recognize their marriages, or prohibit them from having places of worship or importing religious literature.
While Luxembourg does not appear to have such extreme bans or repercussions, the absence of religious affiliation statistics aligns with a broader trend of countries limiting the collection and dissemination of data related to religious groups. This could be an attempt to maintain a delicate balance in society, respect individuals' choices regarding religious beliefs, or prevent potential conflicts between religious communities.
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The state recognises several religions
Luxembourg is a secular state, but it recognises several religions. The country has a deep-rooted Catholic tradition, and the Catholic Church has received state support since 1801. This stems from Napoleon's Concordat of 1801, the principles of which have continued to apply to Luxembourg, despite its separation from France in 1815 and its subsequent Dutch ownership.
Christianity is the dominant religion in Luxembourg, with 73.2% of the population adhering to forms of Christianity as of 2018. Of these, 63.8% are Catholics, 1.8% are Protestants, 3.0% are Orthodox Christians, and 4.6% adhere to other Christian denominations. A 2010 Pew Research Center study found that 70.4% of the population was Christian, while a CIA Factbook estimate from 2000 placed the figure at 87%.
The state also recognises Judaism, Greek and Russian Eastern Orthodox Christianity, and Protestantism as officially mandated religions. There is a small but growing presence of other religions, such as Islam, Buddhism, and Hinduism. Protestantism is a minority religion in Luxembourg, with adherents divided across several churches and creeds, including Lutheranism, Calvinism, Anglicanism, and diverse Evangelical Protestant churches.
The Baha'i Faith, the Universal Church, and Jehovah's Witnesses are represented in smaller numbers. There is also a small community of the Church of Jesus Christ of Latter-day Saints (Mormons) in Dommeldange, which has been growing since its establishment in 2000. While Luxembourg is officially secular, the Grand Duchy recognises and supports several denominations, allowing the state a hand in their affairs.
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Religious diversity is increasing
Luxembourg is a secular state in Western Europe with a surprising degree of religious diversity. While it is historically Roman Catholic, and Catholicism remains the predominant faith, religious diversity is increasing.
Christianity is the dominant religion in Luxembourg, with 70.4% of the population adhering to forms of Christianity as of 2018. Of these, 63.8% are Catholics, 1.8% are Protestants, 3.0% are Orthodox Christians, and 4.6% adhere to other Christian denominations. However, the percentage of Catholics has decreased over time, with 94% of the population being Catholic in 2002, 68% in 2022, and an estimated 87% in 2000 according to the CIA Factbook.
The Catholic Church has received state support since 1801, and Catholicism continues to be deeply rooted in Luxembourg's culture and traditions. There are numerous Catholic holidays and an abundance of Catholic churches across the country. However, religious diversity is on the rise. In 2008, 25% of Luxembourgers said they did not belong to any religion, and by 2022, over 30% identified as agnostic, atheist, or having no religious belief.
The state currently recognizes several religions, including the Catholic Church, Judaism, Greek and Russian Eastern Orthodox Christianity, and Protestantism, as officially mandated religions. Other religions such as Islam, Buddhism, Hinduism, and Judaism are also present in smaller numbers. The Baha'i Faith, the Universal Church, Jehovah's Witnesses, and the Church of Jesus Christ of Latter-day Saints (Mormons) have small but growing communities in Luxembourg.
Luxembourg's approach to religion has evolved differently from France's official position of laïcité in the past 200 years, reducing the separation of church and state. Cultural integration for newcomers in terms of religious communities is essential in the Grand Duchy, contributing to the increasing religious diversity in the country.
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Frequently asked questions
Christianity is the dominant religion in Luxembourg, with 73.2% of the population adhering to forms of Christianity as of 2018.
While the exact number is unknown, it is estimated that 63.8% to 68% of Luxembourg's population identify as Catholic.
The percentage of Catholics in Luxembourg has decreased over time. In 2002, 94% of the population was Catholic, while in 2010, the percentage of Catholics was estimated to be 70.4%.
Yes, in addition to Catholicism, other religions practised in Luxembourg include Protestantism, Islam, Judaism, and Buddhism. Luxembourg is a secular state that recognises and supports several religious denominations.











































