
For centuries, Ireland was considered the most Catholic country in the world. However, in recent decades, the country has undergone a significant transformation, with increasing secularism, modernisation, and the emergence of religious scandals involving Irish Catholic leaders. While the 2022 census revealed that 69.1% of the population still identified as Catholic, this number has decreased from over 90% in previous years, and the number of people identifying with no religion is on the rise. This shift is particularly noticeable in Dublin, which now has the lowest percentage of Catholics in the Irish Republic, while rural areas maintain higher proportions of Catholic residents. The Catholic Church in Ireland is now facing the challenge of adapting to a modern identity as the country continues to evolve.
| Characteristics | Values |
|---|---|
| Percentage of population identifying as Catholic | 69.1% (3.5 million) in 2022 census |
| Next largest group | "No religion" at 14% in 2022 census |
| Second largest Christian denomination | Eastern Orthodox Church at 2.1% |
| Third largest Christian denomination | Church of Ireland at 2% in 2022 census |
| Religious freedom score | 4 out of 4 in 2023 |
| Secularism trend | Increasing, especially among younger generations |
| Same-sex marriage law | Passed by 62% majority |
| Mass attendance (daily) | 13% in 2006 |
| Mass attendance (weekly) | 48% in 2006, down from 85% in 1990 |
| County with highest proportion of Catholics | County Mayo at 80% |
| Dublin's percentage of Catholics | 53% |
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What You'll Learn

Ireland is becoming less Catholic
Ireland, long considered "the most Catholic country in the world", has witnessed a significant shift in religious trends over the past few decades. While the country still has a predominantly Catholic population, with 69.1% identifying as such in the 2022 census, there has been a noticeable decline in religious affiliation and practice among its residents.
One of the most prominent indicators of Ireland's move towards secularism is the decreasing attendance at Catholic Mass. According to a Georgetown University study, daily Mass attendance dropped from 13% in 2006 to 48% in 2011, representing a significant cultural shift. This trend is particularly evident among the younger generations, who are increasingly embracing secular values and distancing themselves from organized religion.
The rise in individuals identifying as having "no religion" is another key aspect of Ireland's transition towards a less Catholic demographic. In the 2022 census, 14% of respondents reported having no religious affiliation, making it the second-largest group after Catholics. This trend is especially prominent in urban areas, with Dublin reporting the lowest percentage of Catholics in the Irish Republic at 53%.
Additionally, Ireland's passage of progressive legislation, such as the same-sex marriage law, which was supported by a strong majority of 62%, has been viewed as a sign of a "post-Catholic" Ireland. This shift in societal values and the increasing diversity of religious beliefs, including the growth of Orthodox Christianity, Islam, Hinduism, and other faiths, reflect a nation that is becoming more religiously and culturally diverse.
While the Catholic Church once held a "special position" in the country's 1937 Constitution, the fifth amendment of the constitution in 1972 removed specific references to religious groups, including the Catholic Church. This amendment established freedom of religion, prohibited the endowment of any particular religion, and required the state to treat religious and non-religious schools impartially. These changes reflect a broader trend towards secularism and religious freedom in Ireland.
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Secularism and modernisation
Ireland has long been associated with Catholicism, and for hundreds of years, it was considered "the most Catholic country in the world". However, in recent decades, the country has undergone a significant transformation, moving towards secularism and modernisation. This shift can be attributed to various factors, including the rise of secularism, modernisation, and several national sex scandals involving Irish Catholic leaders.
The trend towards secularism is particularly evident among the younger generations in Ireland. In the 2022 census, 69.1% of the population identified as Catholic, a decrease from previous years. Simultaneously, the number of people identifying with "no religion" has increased, with 14% of the population falling into this category in the 2022 census. The Eastern Orthodox Church is the second-largest Christian denomination in Ireland, with 2.1% of the population identifying as Orthodox Christians, mainly represented by immigrants from Eastern European countries such as Romania, Russia, and Ukraine. The country's Muslim and Hindu populations have also experienced significant growth in recent years.
The decline in religious affiliation is more pronounced in urban areas, with Dublin having the lowest percentage of Catholics in the Irish Republic at 53%. In contrast, Catholic identity remains stronger in rural parts of the country, with counties like Mayo, Tipperary, Offaly, Roscommon, and Galway reporting higher proportions of Catholics.
Despite the changing religious landscape, Ireland still has one of the highest rates of regular Mass attendance in Europe. While daily Mass attendance has decreased, weekly attendance remains relatively high. Additionally, the country continues to uphold religious freedom and neutrality, as outlined in its constitution. Article 44 of the Constitution recognises the freedom of religion, prohibiting the state from endorsing or discriminating against any particular religion and requiring it to treat religious and non-religious schools impartially.
As Ireland continues to modernise and become more secular, the Catholic Church is searching for a new, modern identity. The passing of the same-sex marriage law by a strong majority of 62% was a significant indicator of a "post-Catholic" Ireland, as it was the first country to legalise gay marriage through a public vote, despite the Catholic Church's traditional stance against same-sex marriage.
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National sex scandals
Ireland has historically been associated with Catholicism, once even being considered "the most Catholic country in the world". However, in recent times, the country has witnessed a significant shift towards secularism, with a decline in the influence of the Catholic Church. This transition has been influenced by various factors, including national sex scandals involving prominent figures in the Irish Catholic Church.
One of the most prominent national sex scandals in Ireland involving the Catholic Church is the widespread sexual abuse of children by priests and other religious personnel. Beginning in the 1990s, a series of criminal cases and government inquiries exposed that hundreds of priests had abused thousands of children over several decades. The Murphy Report, published in November 2009, revealed widespread child abuse by priests in the Dublin Archdiocese between 1975 and 2004, which the Church had attempted to conceal. The report detailed that four archbishops, including Dermot Ryan, John Charles McQuaid, Kevin McNamara, and Desmond Connell, failed to report their knowledge of child sexual abuse to the Gardaí for decades. The Archdiocese of Dublin's "singing priest", Tony Walsh, was sentenced to 123 years in prison in December 2010 for 14 child abuse convictions involving sex-related offences dating back to the 1970s. Another notorious case involved Brendan Smyth, a Catholic priest who raped or indecently assaulted over a hundred children in parishes across Belfast, Dublin, and the United States over 40 years.
The Irish government's handling of these scandals has been the subject of criticism. In 2002, a television documentary exposed the role of Dublin's Cardinal Desmond Connell in mishandling the sex abuse scandal and accused him of participating in a deliberate cover-up. Despite the growing scandals, then-Archbishop Kevin McNamara sought legal advice and insured the archdiocese to protect it financially without fully disclosing the extent of clerical sex abuse to the authorities as required by law. In 2018, the Irish parliament passed a motion condemning the Holy See's role in obstructing investigations into sexual abuse by priests, leading to the Vatican recalling its ambassador to Ireland.
These scandals have had a profound impact on the perception of the Catholic Church in Ireland and have contributed to the country's secularisation and the decline in the Church's influence. They have also revealed systemic failures within the Church and the need for accountability and justice for the victims.
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Mass attendance is declining
Ireland has historically been associated with Catholicism, but in recent times, the country has undergone a significant transformation in terms of religious practice and affiliation. While Catholicism still plays a role in shaping Ireland's cultural and social landscape, there are noticeable shifts away from traditional religious practices, particularly when it comes to Mass attendance.
One of the key indicators of this change is the declining attendance at Mass. Once a staple of Irish cultural life, with high attendance rates, Mass participation has been steadily decreasing over the years. This trend is reflected in various surveys and studies. For example, the Irish Times' 2019 poll found that only about one-third of Irish Catholics attend Mass once a week or more, with a significant portion attending only on special occasions or not at all.
There are several factors contributing to this decline. One factor is the changing social and cultural landscape of Ireland. Irish society has become increasingly secular, with people prioritizing individual choice and personal beliefs over traditional religious practices. This shift is particularly noticeable among younger generations, who tend to be less religiously affiliated and may view religious institutions with skepticism or indifference.
Additionally, the Irish Catholic Church has been embroiled in several scandals, including allegations of abuse and cover-ups, which have damaged its reputation and led some people to distance themselves from the institution. The handling of these scandals by the Church has been a source of criticism and has likely contributed to the decline in Mass attendance.
Demographic changes also play a role. Ireland has become increasingly diverse, with growing immigrant populations who may have different religious backgrounds or no religious affiliation. This diversity has contributed to a more pluralistic society, where Catholicism may not hold the same prominence as it once did.
The decline in Mass attendance has had a significant impact on the Irish Catholic Church. It has led to a reevaluation of its role and prompted discussions about how to engage with modern Irish society more effectively. The Church has undertaken various initiatives to address this, including efforts to modernize and become more inclusive, such as encouraging greater lay participation and embracing new forms of worship and community engagement.
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Catholic identity in rural areas
Ireland has long been associated with Catholicism, and the Catholic Church has historically played a significant social and political role in the country. However, in recent decades, Ireland has become more secular, and the influence of the Catholic Church has waned. This shift is particularly evident in urban areas, with rural areas of the country maintaining a stronger Catholic identity.
In the 2022 census, 69.1% of the population of the Republic of Ireland identified as Catholic, down from 79% in 2016 and 84.2% in 2011. Dublin, the capital city, now has the lowest percentage of Catholics in the country, with just over half (53%) of residents identifying as Catholic. In contrast, rural areas of Ireland have a higher proportion of Catholics, with County Mayo on the western coast reporting 80% of its population as Catholic, followed closely by other rural regions such as Tipperary, Offaly, Roscommon, and Galway County, all with 79%. This trend is also reflected in the concentration of members of the Church of Ireland, with 55.1% based in urban areas and 44.9% in rural areas.
The decline in religious affiliation in Ireland has been accompanied by a rise in secularism, particularly among younger generations. The number of people identifying as having "no religion" has increased, becoming the second-largest group in the country after Catholics. This trend is particularly noticeable in urban areas, with three out of four people in this group located in cities, towns, or settlements of 1,500 or more people.
Historically, the Catholic Church in Ireland has had a strong influence on social policies, with the country upholding family-oriented policies for longer than most Western nations. For example, divorce and remarriage were not permitted from 1937 until 1995, and pornography, abortion, and contraception were resisted. The Church also controlled many hospitals and schools and provided various social services. However, in recent years, Ireland has seen a shift towards more progressive policies, with voters approving referendums to legalise same-sex marriage in 2015 and abortion in 2018, despite objections from the Catholic Church.
While Ireland is becoming less religious overall, rural areas continue to have a stronger Catholic identity, with a higher percentage of the population identifying as Catholic and a more significant presence of the Church in daily life and social policies.
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Frequently asked questions
While Ireland has historically been considered "the most Catholic country in the world", it is becoming less religious. In the 2022 census, 69.1% of the population identified as Catholic, down from 84.2% in 2011. The number of people identifying as having "no religion" has been increasing, with 14% of the population identifying as such in the 2022 census.
The decline of Catholicism in Ireland can be attributed to various factors, including secularism, modernization, and national sex scandals involving Irish Catholic leaders. There has also been a general trend towards secularism, especially among younger generations.
While Catholicism is still the dominant religion in Ireland, there has been significant growth in other religious groups. The country's Muslim and Hindu populations have experienced notable increases in recent years. Additionally, Eastern Orthodox Christianity is the country's fastest-growing religion, with 2.1% of the population identifying as Orthodox Christians.











































