
The Catholic Church, the world's oldest continuously functioning international institution, has approximately 1.4 billion members worldwide, making it one of the largest religious groups in the world. Catholics comprise about half of all Christians and 16% of the world's total population. While the number of Catholics has grown, the number of priests has decreased. The Catholic Church is also the largest non-government provider of education and healthcare globally, with 5,000 hospitals, 10,000 orphanages, 95,000 elementary schools, and 47,000 secondary schools.
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What You'll Learn
- There are 1.272 billion Catholics worldwide, making up 48.1% of Christians
- % of US adults identify as Catholic, though religious participation is declining
- The Catholic Church is the third-largest congregation in the US
- The Catholic Church is the largest non-government provider of education and healthcare globally
- Brazil has the most Catholics of any country, with 126,750,000

There are 1.272 billion Catholics worldwide, making up 48.1% of Christians
The Catholic Church is the largest non-government provider of education and healthcare in the world. As of 2025, there are 1.272 billion Catholics worldwide, constituting 48.1% of the 2.645 billion Christians. The Catholic Church is also the world's oldest continuously functioning international institution.
The global Catholic population has been steadily increasing. Between 2022 and 2023, the number of Catholics grew by 1.15%, from approximately 1.39 billion to 1.406 billion. This growth is observed across all continents except Oceania, where the number of bishops has remained unchanged. Africa, in particular, has a highly dynamic spread of the Catholic Church, with the number of Catholics in the region increasing from 272 million in 2022 to 281 million in 2023. Europe, on the other hand, has the lowest growth rate, with an increase of just 0.2% over the same period.
The United States is home to the fourth-largest Catholic population in the world, after Brazil, Mexico, and the Philippines. As of 2018, Catholics made up 23% of the US population, making it the country's second-largest religious grouping after Protestantism. A 2020 Gallup poll showed a slight increase, with 25% of Americans identifying as Catholic. Catholicism has had a significant cultural, social, and political impact on the United States.
The Catholic Church is made up of the Latin Church (or the Western or Roman Church) and 22 to 23 Eastern Catholic Churches. Each church has its own distinct hierarchy, liturgy, prayers, and religious observances. The Western (Latin) Church is the largest among these churches. The Eastern Catholic Churches are led by either a patriarch or a major archbishop and are recognized as true Churches rather than just rites within the Catholic Church.
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20% of US adults identify as Catholic, though religious participation is declining
The Catholic Church is one of the largest religious groups in the United States, with 20% of US adults identifying as Catholic. However, religious participation is declining, with a decrease in the number of people attending Mass regularly. This trend is not unique to Catholicism, as Christianity as a whole is experiencing a decline in the United States. The religiously unaffiliated, or "nones," now make up 26% of the US population, up from 17% in 2009. This group includes atheists, agnostics, and those who identify as nothing in particular.
While the number of Catholics in the US is declining, it is important to note that millions of people still hold cultural, familial, or historical ties to the Church. Among those who identify as Catholic, levels of observance vary significantly. Some are devout in their practice, while others are less engaged. According to a recent survey, 13% of Catholics reported never or rarely engaging in any of the faith's core practices, while 74% fall somewhere in between, participating in at least one religious activity a year but not all.
The racial and ethnic makeup of the Catholic population in the US varies by region. In the Midwest, 78% of Catholics are White and 15% are Hispanic. In the Northeast, 72% are White and 20% are Hispanic. The South has a more diverse Catholic population, with 44% White and 45% Hispanic Catholics. The West has the highest percentage of Hispanic Catholics, at 58%, and also a relatively larger population of Asian Catholics (10%) compared to other regions.
Despite the overall decline in religious participation, there are signs of renewal within the Catholic Church in the US. Movements such as the Latin Mass resurgence, youth-focused communities, and charismatic renewal groups have emerged. The synodal process encouraged by Pope Francis has also sparked more lay involvement in recent years. These developments underscore the enduring presence of Catholicism in American life and its ability to evolve and remain relevant in a changing social landscape.
In conclusion, while it is true that 20% of US adults identify as Catholic, religious participation is indeed declining. However, the Catholic Church in the US is also experiencing renewal and remains a significant religious group in the country, with complex intersections of faith, politics, culture, and identity.
Joyce Rupp: Catholic Nun and Spiritual Writer
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The Catholic Church is the third-largest congregation in the US
Catholics are spread out relatively evenly across the US. Roughly three in ten (29%) live in the South, while 26% live in the Northeast, 25% in the West, and 20% in the Midwest. The racial and ethnic makeup of the Catholic population varies by region. For example, in the Midwest, 78% of Catholics are White and 15% are Hispanic. In the Northeast, 72% of Catholics are White and 20% are Hispanic. In the South, 44% are White and 45% are Hispanic. The West has a majority Hispanic Catholic population (58% vs. 27% White). It also has a relatively larger population of Asian Catholics than other regions (10%).
Catholics are one of the largest religious groups in the United States, outnumbering any single Protestant denomination. The Catholic Church includes the international body of churches in full communion with the Bishop of Rome, the Pope. These churches include the Western (or Latin) Church and 22 Eastern Catholic Churches, each with distinct hierarchies, liturgy, prayers, and religious observances.
The Catholic Church in the United States is led by bishops, who govern individual dioceses and collectively through the United States Conference of Catholic Bishops. Each diocese, on average, incorporates about 350,000 Catholic Christians. The global Catholic population increased by 1.15% between 2022 and 2023, rising from approximately 1.39 billion to 1.406 billion.
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The Catholic Church is the largest non-government provider of education and healthcare globally
The Catholic Church is the largest non-governmental provider of education and healthcare worldwide. It is also the world's oldest continuously functioning international institution. The church has approximately 1.27 to 1.41 billion baptised members globally as of 2025, making up 48.1% of 2.645 billion Christians. The Catholic Church consists of 24 sui iuris (autonomous) churches, including the Latin Church and 22 to 23 Eastern Catholic Churches, each with distinct hierarchies, liturgy, prayers, and observances. These churches comprise about 3,500 dioceses and eparchies worldwide, each overseen by one or more bishops.
The Catholic Church has a long history of involvement in education and healthcare. Since the establishment of the first universities in Europe, the Church has played a significant role in education. Today, it operates thousands of primary and secondary schools, colleges, and universities worldwide, managing the most extensive non-governmental school system. Religious institutes, such as the Sisters of Mercy and the Missionaries of Charity, have been crucial in developing and managing the Church's global health and education networks.
In terms of healthcare, the Catholic Church manages around 26% of the world's health care facilities, including 5,000 to 5,500 hospitals, 18,000 clinics, 16,000 homes for the elderly and those with special needs, and 9,000 to 10,000 orphanages. These health care facilities are spread across the globe, with 65% of the hospitals located in developing countries. The Church's involvement in healthcare is rooted in its religious beliefs. Jesus Christ, whom the Church considers its founder, instructed his followers to heal the sick, and early Christians were known for tending to the sick and infirm.
The Catholic Church's extensive network of charities and social services reflects its commitment to education and healthcare. Its diplomatic status as the Holy See further facilitates access to its international charities. The Church's vast resources and global reach enable it to provide essential services to millions, making it the largest non-governmental provider in these sectors.
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Brazil has the most Catholics of any country, with 126,750,000
Brazil has the largest Catholic population of any country in the world, with 126,750,000 Catholics, according to the Pew Research Center's analysis of 2010 census data. This number is slightly lower than the estimate published in the Vatican Publishing House's "Statistical Yearbook of the Church", which puts the number of Catholics in Brazil at 163,269,000.
Brazil has been overwhelmingly Catholic since it was colonized by the Portuguese in the 16th century. In recent decades, however, the percentage of Brazilians who identify as Catholic has been steadily declining, while the percentage belonging to Protestant churches has been rising. In 2000, about three-quarters (74%) of Brazilians identified as Catholic, but by 2010, this number had dropped to about two-thirds (65%).
Despite this decline, Brazil remains the country with the highest number of Catholics. The United States, which has the fourth-highest number of Catholics, is home to about 7% of the world's Catholic population. As of 2010, it was estimated that 23% of US adults and 24% of the total US population were Catholic.
The Catholic Church is the largest non-government provider of education and healthcare in the world. It operates 5,000 hospitals, 10,000 orphanages, 95,000 elementary schools, and 47,000 secondary schools. The church is also known for its spectacular religious festivals and processions, such as the 45,000-seat shrine for Our Lady Aparecida in Brazil.
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Frequently asked questions
As of 2025, there are 1.4 billion Catholics worldwide, constituting 48.1% of 2.645 billion Christians.
The Catholic Church is the "world's oldest continuously functioning international institution." It is made up of the Latin Church (or the Roman or Western Church) and 23 Eastern Catholic Churches, each led by either a patriarch or a major archbishop in communion with the Bishop of Rome (the Pope).
Catholics believe in the Holy Trinity: God the Father, God the Son, and God the Holy Spirit. They believe that Jesus Christ is the "Second Person" of the Trinity, God the Son, and that he became united with human nature through the power of the Holy Spirit and the conception of Christ in the womb of the Virgin Mary. Catholics also believe that no one is predestined to hell and that through God's mercy, a person can repent and obtain salvation at any point before death.









































