A Christian denomination is a distinct religious body within Christianity that comprises all church congregations of the same kind, identifiable by traits such as a name, particular history, organization, leadership, theological doctrine, worship style and, sometimes, a founder. It is a secular and neutral term, generally used to denote any established Christian church. Unlike a cult or sect, a denomination is usually seen as part of the Christian religious mainstream. Most Christian denominations refer to themselves as churches, whereas some newer ones tend to interchangeably use the terms churches, assemblies, fellowships, etc. Divisions between one group and another are defined by authority and doctrine; issues such as the nature of Jesus, the authority of apostolic succession, biblical hermeneutics, theology, ecclesiology, eschatology, and papal primacy may separate one denomination from another. Groups of denominations—often sharing broadly similar beliefs, practices, and historical ties—are sometimes known as "branches of Christianity". These branches differ in many ways, especially through differences in practices and belief.
There are 0.8 — 1.05 billion Protestants worldwide, among approximately 2.5 billion Christians. In 2010, a total of more than 800 million included 300 million in Sub-Saharan Africa, 260 million in the Americas, 140 million in Asia-Pacific region, 100 million in Europe and 2 million in Middle East-North Africa. Protestants account for nearly forty percent of Christians worldwide and more than one tenth of the total human population. Various estimates put the percentage of Protestants in relation to the total number of the world's Christians at 33%, 36%, 36.7%, and 40%, while in relation to the world's population at 11.6% and 13%.
As of the year 2023, Christianity had approximately 2.4 billion adherents and is the largest religion by population. According to a PEW estimation in 2020, Christians made up to 2.38 billion of the worldwide population of about 8 billion people. It represents nearly one-third of the world's population and is the largest religion in the world, with the three largest groups of Christians being the Catholic Church, Protestantism, and the Eastern Orthodox Church. The largest Christian denomination is the Catholic Church, with 1.3 billion baptized members. The second largest Christian branch is either Protestantism, or the Eastern Orthodox Church.
Christianity and Islam are the two main religions practiced in Nigeria The country is home to some of the world's largest Christian and Muslim populations, simultaneously. Reliable recent statistics do not exist; however, Nigeria is divided roughly in half between Muslims, who live mostly in the northern region, and Christians, who live mostly in the southern region of the country. Indigenous religions, such as those native to the Igbo and Yoruba ethnicities, have been declining for decades and being replaced by Christianity or Islam. The Christian share of Nigeria's population is also now on the decline, due to a lower fertility rate relative to the Muslim population in the country.
Christianity in Africa arrived in Africa in the 1st century AD, and in the 21st century the majority of Africans are Christians. Several African Christians influenced the early development of Christianity and shaped its doctrines, including Tertullian, Perpetua, Felicity, Clement of Alexandria, Origen of Alexandria, Cyprian, Athanasius and Augustine of Hippo. In the 4th century, the Aksumite empire in modern-day Ethiopia and Eritrea became one of the first regions in the world to adopt Christianity as its official religion, followed by the Nubian kingdoms of Nobatia, Makuria and Alodia and several Christian Berber kingdoms.
Christianity in Sudan has a long and rich history, dating back to the early centuries of the Christian era. Ancient Nubia was reached by Coptic Christianity by the 1st century. The Coptic Church was later influenced by Greek Christianity, particularly during the Byzantine era. From the 7th century, the Christian Nubian kingdoms were threatened by the Islamic expansion, but the southernmost of these kingdoms, Alodia, survived until 1504.
Religion in Ethiopia consists of a number of faiths. Among these mainly Abrahamic religions, the most numerous is Christianity totaling at 67.3%, followed by Islam at 31.3%. There is also a longstanding but small Ethiopian Jewish community. Some adherents of the Baháʼí Faith likewise exist in a number of urban and rural areas. Additionally, there is also a substantial population of the adherents of traditional faiths.
Christianity is the predominant religion in Uganda. According to the 2014 census, over 84 percent of the population was Christian, while about 14 percent of the population adhered to Islam, making it the largest minority religion. Anglicanism and Catholicism are the main Christian denominations in the country.
Christianity is the most prevalent religion in the United States. Estimates from 2021 suggest that of the entire U.S. population about 63% is Christian. The majority of Christian Americans are Protestant Christians, though there are also significant numbers of American Roman Catholics and other Christian denominations such as Latter Day Saints, Eastern Orthodox Christians and Oriental Orthodox Christians, and Jehovah's Witnesses. The United States has the largest Christian population in the world and, more specifically, the largest Protestant population in the world, with nearly 210 million Christians and, as of 2021, over 140 million people affiliated with Protestant churches, although other countries have higher percentages of Christians among their populations. The Public Religion Research Institute's "2020 Census of American Religion", carried out between 2014 and 2020, showed that 70% of Americans identified as Christian during this seven-year interval. In a 2020 survey by the Pew Research Center, 65% of adults in the United States identified themselves as Christians. They were 75% in 2015, 70.6% in 2014, 78% in 2012, 81.6% in 2001, and 85% in 1990. About 62% of those polled claim to be members of a church congregation.
Religion in Guinea-Bissau is diverse, with no particular religion comprising an absolute majority of the population. Islam is the most widely professed faith, and significant populations of Christians and adherents of traditional African religions are also present in the country.
Christianity is the largest religion in Mozambique, with substantial minorities of the adherents of traditional faiths and Islam.
Christianity is the majority religion in Cameroon, with significant minorities of the adherents of Islam and traditional faiths.
Christianity is the most adhered-to religion in Canada, with 19,373,330 Canadians, or 53.3%, identifying themselves as of the 2021 census. The preamble to the Canadian Charter of Rights and Freedoms refers to God. The French colonization beginning in the 17th century established a Roman Catholic francophone population in New France, especially Acadia and Lower Canada. British colonization brought waves of Anglicans and other Protestants to Upper Canada, now Ontario. The Russian Empire spread Orthodox Christianity in a small extent to the tribes in the far north and western coasts, particularly hyperborean nomads like the Inuit. Orthodoxy would arrive in mainland Canada with immigrants from the eastern and southern Austro-Hungarian Empire and western Russian Empire starting in the 1890s; then refugees from the Soviet Union, Eastern Bloc, Greece and elsewhere during the last half of the 20th century.
South Sudan, officially the Republic of South Sudan, is a landlocked country in Central/East Africa. It is bordered on the north by Sudan; on the east by Ethiopia; on the south by the Democratic Republic of the Congo, Uganda and Kenya; and on the west by Central African Republic. South Sudan's diverse landscape includes vast plains and plateaus, dry and tropical savannahs, inland floodplains, and forested mountains. The Nile River system is the defining physical feature of the country, running south to north across its center, which is dominated by a large swamp known as the Sudd. South Sudan has a population of 12.7 million. Juba is the capital and largest city.
South Sudan is home to around 60 indigenous ethnic groups and 80 linguistic partitions among a 2021 population of around 11 million. Historically, most ethnic groups were lacking in formal Western political institutions, with land held by the community and elders acting as problem solvers and adjudicators. Today, most ethnic groups still embrace a cattle culture in which livestock is the main measure of wealth and used for bride wealth.
The Catholic Church in South Sudan is composed of one ecclesiastical province with one archdiocese and six suffragan dioceses. There have been a total of 31 bishops in South Sudan to date. The bishops of South Sudan and Sudan are currently members of one single bishops' conference, designated as Sudan Catholic Bishops’ Conference.
Based on the numbers of adherents, the Eastern Orthodox Church is the second largest Christian communion in the world, after the Roman Catholic Church, with the most common estimates of baptised members being approximately 220 million. The numerous Protestant groups in the world, if taken all together, substantially outnumber the Eastern Orthodox, but they differ theologically and do not form a single communion.
Database (WCD) 2010 and International Religious Freedom Report for 2012 of the U.S. Department of State. The article Religions by country has a sortable table from the Pew Forum report.
