Which Countries Have The Most Christians Around The World?

The three largest Christian populations are found in the Americas, while mainland Asia, with some of the earth's most populous countries, goes unrepresented on the top ten list.

Christianity is the largest religion in the world. It is a monotheistic faith, and Roman Catholicism is the most prevalent form of the faith. The cradle of Christianity is Jerusalem in modern day Israel. From there it spread throughout the world through missionaries and colonization. The Bible is considered the most sacred book of the by all Christians. The three largest Christian populations are found in the Americas, while mainland Asia goes unrepresented on the list.

Countries With the Most Christians

The United States of America

The United States tops the list with 226,886,418 Christian residents living in the country. Prevalence of all forms of Christianity stands at 70.6%, while the dominant Christianity type is Protestantism. Christianity in the US became firmly ingrained under British rule. Some states were exclusively established as Christian havens such as Pennsylvania. With political independence came religious independence as well. Religious independence saw the proliferation of Protestant Churches, which were keen to resist the influence of the Catholic Church in the US. Roman Catholicism in the modern day United States accounts for around 24% of the Christian population. Beliefs among the diverse denominations have only minor differences. God is revered as the super being across all Christian denominations, and the Bible is the Holy Christian book. The US has no official state religion and the constitution guarantees for the freedom of worship for all. The Christian adherents in the US have been steadily declining while the numbers of people not affiliated to any organized religion have been increasing.


Brazil is home to the largest population of Christians in South America, as well as to the greatest number of Catholics of any nation in the world. The country has 183,833,831 Christian adherents. Prevalence of all forms of Christianity stands at 90%. Catholicism in Brazil has its origins with the European settlers, and the denomination was made the official religion of the state in the 19th Century. Catholicism became firmly intertwined with the political and social life of Brazilians. The results of the Catholic influence can be seen today in activities such as festivals based on Catholic doctrines. The constitution of Brazil guarantees for freedom of worship and there are numerous Protestant Churches in the country. Such churches include Lutherans, Baptists, Methodists, and Jehovah’s Witnesses. Evangelical Protestantism has reduced drastically and has led to the dominance of the Roman Church in Brazil. Secularism has also been on the rise in the country.


Mexico boasts of being the home to 111,997,864 Christians, these primarily being Roman Catholics. Prevalence of all forms of Christianity in Mexico stands at 92%. Christianity in Mexico has its roots on the Spanish during their conquest of the region. The Spanish saw the indigenous people as pagans and endeavored to introduce them to Catholic doctrines. The spreading of the religion is often attributed to the Virgin of Guadalupe, who was portrayed to have tanned skin similar to that of the native Mexican people. This likeness inspired many conversions and remains a revered figure in modern day.

Protestantism first took root in Mexico in the 1800s and 1900s. Christianity in Mexico is generally tolerant, and different religions exist in harmony.The constitution of Mexico clearly provides for the separation of the church and the state. There is also freedom of religious worship in the country. Growing secularism in the nation has led to a decrease in the number of Christians. Evangelical Christianity has also been on a steady increase while Roman Catholicism has experienced a notable decline in the recent years.


Nigeria accounts for the most Christians of any nation on the African continent, with 88,965,407 adherents. Prevalence of all forms of the religion stands at 49%, with the dominant type being Protestantism. Christianity in Nigeria is particularly prevalent in the Southern and Central areas of the country. Christianity in Nigeria, as in many African countries, was the result of missionaries and colonization. Christianity denominations in the country include Roman Catholic, Seventh-day Adventist, Baptist, Anglican, Church of Nigeria, and Assemblies of God Church. Protestants churches in Nigeria adhere to the foundations of Christianity as other Protestants in other countries but have also adopted different ways of expressing their faith. Tensions have been brewing between Christianity and Islam in the recent years. Radical Islam has largely been blamed for these tensions, which have seen violence and terrorism in various parts of the nation.

Countries With Christian Populations Who Are Growing

Other countries with large Christian populations, and their respective numbers of adherents, include Russia with 88,017,892 Christians, followed by the Philippines (85,848,620), the Democratic Republic of the Congo (73,183,875), Ethiopia (63,658,124), Italy (51,339,750), and Germany (50,938,277). Christianity is expected to increase in numbers, with the highest growth expected to be recorded in Sub-Saharan Africa. Although Islam is expected to grow as well, Christianity is projected to still be the largest religion in the world in 2050.

Christian Populations Around the World

Rank Country Christian Population Prevalence of all forms of Christianity Predominant Form of Christianity
1 United States 226,886,418 70.6% Protestantism
2 Brazil 183,833,831 90.0% Roman Catholicism
3 Mexico 111,997,864 92.0% Roman Catholicism
4 Nigeria 88,965,407 49.0% Protestantism
5 Russia 88,017,892 61.8% Eastern Orthodoxy
6 Philippines 85,848,620 85.0% Roman Catholicism
7 Democratic Republic of the Congo 73,183,875 92.2% Roman Catholicism
8 Ethiopia 63,658,124 64.0% Oriental Orthodoxy
9 Italy 51,339,750 83.0% Roman Catholicism
10 Germany 50,938,277 63.0% Protestantism

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