The predominant religion in Brazil is Christianity, with Catholicism being its largest denomination. In 1891, when the first Brazilian Republican Constitution was set forth, Brazil ceased to have an official religion and has remained secular ever since, though the Catholic Church remained politically influential into the 1970s. The Constitution of Brazil guarantees freedom of religion and strongly prohibits the establishment of any religion by banning government support or hindrance of religion at all levels.
As of the year 2023, Christianity had approximately 2.6 billion adherents and is the largest-religion by population respectively. According to a PEW estimation in 2020, Christians made up to 2.6 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.
The Cuban population has historically been Christian, primarily Roman Catholic, although the irreligious population has grown substantially in recent decades. Catholicism in Cuba is in some instances profoundly modified and influenced through syncretism. A common syncretic religion is Santería, which combined the Yoruba religion of the African slaves with Catholicism and some Native American strands; it shows similarities to Brazilian Umbanda and has been receiving a degree of official support. The Roman Catholic Church estimates that 60 percent of the population is Catholic, but only 5% of that 60% attends mass regularly, while independent sources estimate that as few 1.5% of the population does so.
Christians in Benin constitute approximately 48.5 of the country's population.
Christianity is the predominant religion in Zambia and is recognised as the state religion by the country's constitution. Before the arrival of European missionaries, the various ethnic groups residing in the territory of modern day Zambia practiced a variety of African traditional religions.
According to various polls, the majority of Kazakhstan's citizens, primarily ethnic Kazakhs, identify as Sunni Muslims, Less than 1% are part of Shi'a. There are a total of 2,900 mosques, all of them affiliated with the "Spiritual Association of Muslims of Kazakhstan", headed by a supreme mufti. The Eid al-Adha is recognized as a national holiday.
The Constitution provides for freedom of religion, but the government imposes onerous criteria on religious groups for official recognition, which is required for the legal construction of houses of worship. There is no registered muslim groups in Angola.
The Constitution provides for freedom of religion, although it prohibits what the Government considers to be religious fundamentalism.
Christianity is the largest religion in Benin, with substantial populations of Muslims and adherents of traditional faiths. According to the most recent 2020 estimate, the population of Benin is 52.2% Christian, 24.6% Muslim, 17.9 Animist and 5.3% follows other faiths or has no religion.
Burkina Faso is a religiously diverse society, with Islam being the dominant religion. According to the latest 2019 census, 63.8% of the population adheres to Islam. Around 26.3% of the population practices Christianity, 9.0% follow Animism/Folk Religion, and that 0.9% are unaffiliated or follow other faiths.
Christianity is the most widely professed religion in Zimbabwe, with Protestantism being its largest denomination.
Christianity is the largest religion in Tanzania, with a substantial Muslim minority. Smaller populations of Animists, practitioners of other faiths, and religiously unaffiliated people are also present.
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 Faiths are also present in the country.
Religion in Eritrea consists of a number of faiths. The two major religions in Eritrea are Christianity and Islam. However, the number of adherents of each faith is subject to debate. Estimates of the Christian share of the population range from 47% and 63%, while estimates of the Muslim share of the population range from 37% to 52%.
Islam is the most followed religion in Niger and is practiced by 99% of the population. According to Pew, roughly 80% of Muslims are Sunni of Maliki school of jurisprudence, whilst 20% are non-denominational Muslims, Other religions practiced in Niger include Animism and Christianity.
Religion in Namibia is dominated by various branches of Christianity, with more than 90 percent of Namibian citizens identifying themselves as Christian. According to the United States DRL, in 2007 up to 75% were Protestant, including as much as 50% Lutheran.
Christianity is the largest religion in Cape Verde, with Roman Catholics having the most adherents. Different sources give varying estimates on the relative sizes of various Christian denominations. More than 94% of the population of Cape Verde is Christian, with almost 85% being Roman Catholic. About 5% of the population is Protestant. The largest Protestant denomination is the Church of the Nazarene. Other groups include the Church of the Nazarene, the Assemblies of God, Seventh-day Adventist Church, the Universal Church of the Kingdom of God, independent Baptists and various other Pentecostal and evangelical groups.
Christianity is the largest religion in Nauru, with Nauru Congregational Church being the largest denomination, encompassing 35.71% of the population as of the 2011 census.
Christianity is the majority religion of the Democratic Republic of the Congo and is professed by a majority of the population.
The main religion in Morocco is Sunni Islam, which is also the state religion of the country. Blasphemy against Islam is a punishable offense. Officially, 99% of the population are Muslim, and virtually all of those are Sunni. The second-largest religion in the country is Christianity, but most Christians in Morocco are foreigners. There is a community of the Baháʼí Faith. Only a fraction of the former number of Maghrebi Jews have remained in the country, many having moved to Israel.
