
Ireland has traditionally been a Catholic country, with the Catholic Church enjoying a special position in the country's 1937 constitution. However, in recent years, Ireland has become more diverse and secular, and the percentage of residents who identify as Catholic has been declining. As of the 2022 census, 69.1% of the population identified as Catholic, down from 84.2% in 2011 and over 90% in 2006. This decline in Catholic identity is more pronounced in urban areas like Dublin, with rural regions remaining predominantly Catholic. The rise of secularism and the increasing diversity of religious beliefs in Ireland have sparked debates about the role of religion in education and the need for a more inclusive school system.
| Characteristics | Values |
|---|---|
| Percentage of Ireland that is Catholic | 69% (2022 census) |
| Number of people in Ireland who identify as Catholic | 3.5 million (2022 census) |
| Percentage of people in Dublin who identify as Catholic | 53% |
| Percentage of people in County Mayo who identify as Catholic | 80% |
| Percentage of Irish residents who identify as non-religious | 14% (2022 census) |
| Percentage of schools in Ireland that are Catholic | 88% |
| Percentage of people in Northern Ireland who identify as Catholic | 42.3% (2021 census) |
| Percentage of people in the south of Ireland who were Catholic in 1922 | 92.6% |
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What You'll Learn
- The percentage of Irish residents identifying as Catholic is 69.1% (2022 census)
- Ireland is becoming less religious, with an increase in those identifying with no religion
- The Catholic Church once held a special position in Ireland, but the country has since undergone secularisation
- Catholicism is still the largest denomination in Ireland, with 3.5 million members
- Mass attendance varies across Ireland, with an average of 18% in Dublin, and 80% in County Mayo

The percentage of Irish residents identifying as Catholic is 69.1% (2022 census)
The most recent census data from 2022 shows that 69.1% of Ireland's residents identify as Catholic. This percentage represents a slight decrease from the 78.3% recorded in the 2016 census and continues a trend of gradual decline in the number of Catholics in the country over the last few decades. Despite this, Catholicism still remains the dominant religion in Ireland, with its influence deeply rooted in the country's culture and history.
The decline in the percentage of Catholics in Ireland can be attributed to a variety of factors. One significant factor is the increasing secularization of Irish society, with more people choosing to identify as having no religion. In the 2022 census, 12.9% of residents stated they had no religion, an increase from the 9.8% recorded in 2016. This trend is particularly prominent among younger generations, who are increasingly likely to identify as non-religious.
Additionally, Ireland has become a more ethnically and culturally diverse country in recent years, with an increase in immigration from non-Catholic countries. This has contributed to the growth of other religions in the country, such as Islam and Orthodox Christianity. The 2022 census showed that 2.5% of the population identified with religions other than Catholicism or no religion, an increase from 1.9% in 2016.
It is worth noting that the percentage of Catholics in Ireland varies across different regions of the country. Traditionally, the west and south of Ireland have been more religiously homogeneous, with higher proportions of Catholics, while the east and north have been more diverse. However, this landscape is changing, with urbanization and immigration contributing to a more even distribution of religious identities across the country.
The Catholic Church in Ireland has also been facing a number of challenges in recent years, including declining church attendance and the impact of scandals involving clergy. These factors have likely contributed to a shift in religious affiliation and practice among some Irish residents. Nevertheless, Catholicism still plays an important role in the cultural and social fabric of the country, and many Catholics continue to find meaning and community within the church.
While the percentage of Irish residents identifying as Catholic has been decreasing, it remains the majority religion in the country. The trends of secularization and increasing religious diversity are shaping the religious landscape of Ireland and contributing to a more pluralistic and multifaceted society.
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Ireland is becoming less religious, with an increase in those identifying with no religion
Ireland is predominantly Catholic, with 69.1% of the population identifying as such in the 2022 census. However, there is a notable trend of the country becoming less religious, with an increase in those identifying with no religion. This shift towards secularism is particularly evident among the younger generations.
Historically, the Catholic Church played a significant role in Irish society and politics. Following the Easter Rising of 1916 and the establishment of the Irish Free State, the Church gained substantial social and political influence. The 1937 Constitution of Ireland gave the Catholic Church a "special position", recognising it as the church of the majority while also acknowledging other Christian denominations and Judaism. However, in the late 20th century, the country underwent a process of legal secularisation, with the fifth amendment of the constitution removing specific references to religious groups, including the Catholic Church.
Despite the historical influence of the Catholic Church, Ireland has become increasingly diverse and secular in recent years. According to the 2022 census, 14% of the population identified as having no religion, up from 9.8% in 2011. This trend is reflected in the decline in weekly Mass attendance, especially among younger generations, with rates as low as 2% in some areas.
The trend towards secularism has also impacted religious education in schools. While many schools in Ireland are still run by religious organisations, there is a growing movement to reduce the focus on religious instruction and provide more inclusive options. Parents now have the right to request that their children be excluded from religious studies. Additionally, the subject of religious studies was introduced as an optional choice in the state-administered Junior Certificate in 2001, covering a range of religions rather than a single denomination.
The decline in religious affiliation has not been limited to Catholicism. Between 2011 and 2016, the absolute number of Catholics decreased, and other Christian denominations, such as the Church of Ireland, also experienced a decline in membership. Meanwhile, there has been a significant increase in those identifying with other religions, such as Eastern Orthodoxy, Islam, and Hinduism. The rise of New Age religious movements, often attracting followers from established religions, further contributes to the changing religious landscape in Ireland.
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The Catholic Church once held a special position in Ireland, but the country has since undergone secularisation
The Catholic Church has historically held a significant presence in Ireland, with the country having a majority Catholic population for much of its modern history. However, in recent years, Ireland has experienced a notable shift towards secularisation, with an increasing number of people identifying as non-religious or following other religious traditions. This trend is particularly evident among the younger generations, signalling a move away from the country's traditionally strong Catholic identity.
According to the 2022 census, 69.1% of the population of the Republic of Ireland identified as Catholic, a decrease from previous years. This decline in Catholic affiliation has been accompanied by a corresponding rise in those identifying with no religion, who now make up 14% of the population. The trend is even more pronounced in Dublin, which has the lowest percentage of Catholics in the country at 53%, while rural areas remain more strongly Catholic, with counties like Mayo reporting up to 80% of the population identifying as Catholic.
The Catholic Church's influence in Ireland has extended beyond religious observance, particularly in the areas of education and social services. The majority of state-funded primary schools in Ireland, often referred to as national schools, are affiliated with the Catholic Church, and the Church has had a significant role in their management. This has led to controversies in recent times, particularly around admission policies that favour baptised Catholic students over non-Catholics when schools are oversubscribed. Secular groups have advocated for a more inclusive and diverse education system, and the government has committed to increasing the number of multi-denominational schools.
Historically, the Catholic Church in Ireland enjoyed a special position as granted by the 1937 Constitution, which recognised it as the majority religion. However, this changed in 1972 with the fifth amendment to the Constitution, which removed the mention of specific religious groups, including the Catholic Church, and affirmed freedom of religion for all citizens. This amendment was part of a broader process of legal secularisation that Ireland underwent in the late twentieth century, mirroring similar trends in other predominantly Catholic European countries.
While the Catholic Church in Ireland continues to have a significant presence, the country's religious landscape is undoubtedly evolving. The rise of secularism, the increasing diversity of religious beliefs, and the impact of scandals within the Church have all contributed to a shift away from the once-dominant position of Catholicism in Irish society. As Ireland becomes more culturally and religiously diverse, the role and influence of the Catholic Church are likely to continue to evolve and adapt to the changing needs and beliefs of the population.
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Catholicism is still the largest denomination in Ireland, with 3.5 million members
Ireland has historically been a Catholic nation, with the Catholic Church occupying a "special position" in the country's 1937 Constitution. However, in recent years, Ireland has become more diverse and secular, and the percentage of residents identifying as Catholic has been declining. Despite this, Catholicism remains the largest denomination in the country, with 3.5 million adherents, according to the 2022 census. This represents 69.1% of the population, a significant majority, but a decrease from previous years.
The decline in Catholic affiliation is particularly notable among the younger generations, with weekly Mass attendance in Dublin at just 18% in 2011 and even lower among younger age groups. The trend towards secularism is evident, with the number of people declaring no religious affiliation increasing significantly. In the 2022 census, 14% of the population identified as irreligious, up from 9.8% in 2011.
Several factors have contributed to the changing religious landscape in Ireland. Immigration has played a role, with an increase in the number of people following other religions, such as Eastern Orthodoxy, Islam, and Hinduism. Additionally, the country has experienced a general trend of secularism, particularly among the youth, with a rise in irreligion and a decrease in religious practice.
The influence of the Catholic Church in Ireland has also been impacted by various controversies and scandals. The Church's control over primary education has become controversial, especially regarding preferential treatment given to baptised Catholics in school admissions. Additionally, the Catholic Church in Ireland has been embroiled in a number of sexual abuse scandals involving clerics, further contributing to a decline in its influence and reputation.
Despite the overall decline in Catholic affiliation, it is worth noting that Catholic identity remains stronger in rural parts of Ireland. Certain counties, such as Mayo, Tipperary, Offaly, Roscommon, and Galway, report higher proportions of Catholics, with County Mayo having the highest percentage at 80%. While the percentage of Catholics in Dublin is the lowest in the country at 53%, it is still the majority.
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Mass attendance varies across Ireland, with an average of 18% in Dublin, and 80% in County Mayo
While the predominant religion in Ireland is Christianity, with the largest denomination being the Catholic Church, the country has been undergoing a period of secularisation. This is reflected in the varying rates of Mass attendance across the country, with an average of 18% in Dublin, and 80% in County Mayo.
Ireland has a long history of Catholicism, and the religion still holds a significant presence in the country. The Constitution of Ireland, established in 1937, originally gave the Catholic Church a "special position" as the majority religion. However, the country has since undergone legal secularisation, and the constitution now guarantees freedom of religion without endorsing any particular faith.
Despite this, Catholicism continues to play a role in Irish society, particularly in education. Many schools in Ireland are run by religious organisations, with a large proportion affiliated with the Catholic Church. However, there is a growing trend of secularism among the younger generations, with a decline in religious observance and an increase in the number of people identifying as having "no religion".
The contrast between Dublin and County Mayo is indicative of the varying levels of religious observance in different parts of Ireland. Dublin, an urban area, has seen a decrease in Mass attendance, with lower rates among younger generations. On the other hand, County Mayo, a rural region, has a higher proportion of Catholics and maintains stronger Catholic identity.
The decline in Mass attendance is not limited to Dublin, but is a general trend across Ireland, affecting various Christian denominations. However, it is important to note that County Mayo's high rate of Mass attendance at 80% is an outlier, with other rural regions such as Tipperary, Offaly, Roscommon, and Galway County reporting slightly lower, though still high, proportions of Catholics at 79%.
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Frequently asked questions
In the 2022 census, 69.1% of the population of the Republic of Ireland identified as Catholic. This is down from 84.2% in 2011.
Ireland has become less religious over time, with a seven-fold increase in irreligion between the 1991 and 2016 censuses. In 2022, 14% of the population was irreligious. In Northern Ireland, the percentage of the population that identified as Catholic was 42.3% in 2021, up from 35% in 1922.
Immigration has impacted the religious makeup of contemporary Ireland, with an increase in Orthodox Christians, Hindus, and Muslims. Additionally, the Catholic Church's policy of Ne Temere, which required children of marriages between Catholics and Protestants to be raised Catholic, contributed to Catholic hegemony in the past.




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