The U.S. government estimates the total population at 34.9 million (July 2018 estimate).  There are no reliable statistics available concerning the percentages of Sunni and Shia Muslims in the country; the government’s Central Statistics Office does not track disaggregated population data.  According to the Pew Forum, Shia make up approximately 10-15 percent of the population.

According to religious community leaders, the Shia population, approximately 90 percent of whom are ethnic Hazaras, is predominantly Jaafari, but it also includes Ismailis.  Other religious groups, mainly Hindus, Sikhs, Baha’is, and Christians, constitute less than 0.3 percent of the population.  Sikh and Hindu leaders estimate there are 245 Sikh and Hindu families totaling 700 individuals, down from 1,300 individuals estimated in 2017, mostly in Kabul, with a few communities in Nangarhar, Ghazni, Paktiya, Kunduz, Kandahar, and Helmand Provinces.

The Ahmadi Muslim community estimates it has 450 adherents nationwide, down from 600 in 2017.  Reliable estimates of the Baha’i and Christian communities are not available.  There are small numbers of practitioners of other religions, including one Jewish person.

Hazaras live predominantly in the central and western provinces as well as in Kabul; Ismaili Muslims live mainly in Kabul and in the central and northern provinces.  Followers of the Baha’i Faith live predominantly in Kabul, with a small community in Kandahar.  Ahmadi Muslims largely live in Kabul.

The U.S. government estimates the total population at 3.1 million (July 2018 estimate).  According to the most recent census, conducted in 2011, Sunni Muslims constitute nearly 57 percent of the population, Roman Catholics 10 percent, members of the Autocephalous Orthodox Church of Albania nearly 7 percent, and members of the Bektashi Order (a form of Shia Sufism) 2 percent.  Other groups include Protestant denominations, Baha’is, Jehovah’s Witnesses, The Church of Jesus Christ of Latter-day Saints, and a small Jewish community.  Nearly 20 percent of respondents declined to answer the optional question about religious affiliation.

The U.S. government estimates the total population at 41.7 million (July 2018 estimate), more than 99 percent of whom are Muslims following the Maliki school of Sunni Islam.  Religious groups together constituting less than 1 percent of the population include Christians, Jews, Ahmadi Muslims, Shia Muslims, and a community of Ibadi Muslims residing principally in the province of Ghardaia.  Some religious leaders estimate there are fewer than 200 Jews.

The Christian community includes Roman Catholics, Seventh-day Adventists, Methodists, members of the EPA, Lutherans, the Reformed Church, Anglicans, and an estimated 1,000 to 1,500 Egyptian Coptic Christians.  Religious leaders’ unofficial estimates of the number of Christians range from 20,000 to 200,000.  According to government officials, foreign residents make up the majority of the Christian population.  The proportion of students and immigrants without legal status from sub-Saharan Africa among the Christian population has also increased in recent years.  Christian leaders say citizens who are Christians predominantly belong to Protestant groups.

Christians reside mostly in the cities of Algiers, Bejaia, Tizi Ouzou, Annaba, and Oran, and the Kabylie region east of the capital.

The U.S. government estimates the total population at 86,000 (July 2018 estimate).  The local government does not provide statistics on the size of religious groups, and there is no census data on religious group membership.  The population is predominantly Roman Catholic.  Muslim leaders estimate their community has 1,500 members.  The Muslim community, of which the large majority is composed of recent immigrants, has grown in recent years.  The Jewish community reports it has approximately 100 members.  Other small religious groups include Hindus, Anglicans, Seventh-day Adventists, Baha’is, the Family Federation for World Peace and Unification (Unification Church), the New Apostolic Church, The Church of Jesus Christ of Latter-day Saints, and Jehovah’s Witnesses.

The U.S. government estimates the total population at 30.4 million (July 2018 estimate).  According to the 2014 national census, approximately 41 percent of the population is Roman Catholic and 38 percent Protestant.  Individuals not associated with any religious group constitute 12 percent of the population.  The remaining 10 percent is composed of animists, Muslims, Jews, Baha’is, and other religious groups.  While the 2014 census reported there were an estimated 103,000 Muslims in the country, one leader of a Muslim organization stated there could be as many as 800,000, including an unknown number of Muslim migrants mainly from North and West African countries.  There are approximately 350 Jews, primarily foreign residents.

The U.S. government estimates the total population at 96,000 (July 2018 estimate).  According to the 2011 census, 17.6 percent of the population is Anglican, 12.4 percent Seventh-day Adventist, 12.2 percent Pentecostal, 8.3 percent Moravian, 8.2 percent Roman Catholic, and 5.6 percent Methodist.  Those with unspecified or no religious beliefs account for 5.5 percent and 5.9 percent of the population, respectively.  Members of the Baptist Church, the Church of God, and the Wesleyan Holiness Consortium each account for less than 5 percent.  The census categorizes an additional 12.2 percent of the population as belonging to other religious groups, including Rastafarians, Muslims, Hindus, and Baha’is, without providing percentages for each group.  According to anecdotal information, these four religious groups are listed from largest to smallest.

The U.S. government estimates the total population at 44.7 million (July 2018 estimate).  Religious demographic and statistical data from nongovernmental organizations (NGOs), research centers, and religious leaders vary.  According to a 2014 Pew Research Center study, Catholics constitute 71 percent of the population, Protestants 15 percent, and atheists, agnostics, and those with no religious affiliation 11 percent.  Other sources state Seventh-day Adventists, Baptists, Jehovah’s Witnesses, Lutherans, Methodists, and members of The Church of Jesus Christ of Latter-day Saints (Church of Jesus Christ) together total 3 percent of the population.  According to the Pew study, the Jewish population is approximately 0.5 percent, and the Muslim population is estimated at 1 percent.  Evangelical Christian communities, particularly Pentecostals, are growing in size, but no reliable statistics are available.  There are also a small number of Baha’is, Buddhists, and adherents of indigenous religions in the country; however, no data are available on the size of these groups.

The U.S. government estimates the total population at 3.0 million (July 2018 estimate).  According to the 2011 census, approximately 92 percent of the population identifies with the AAC.  Other religious groups include Roman Catholics, Armenian Uniate (Mekhitarist) Catholics, Orthodox Christians, evangelical Christians, Pentecostals, Seventh-day Adventists, Baptists, charismatic Christians, Jehovah’s Witnesses, members of the Church of Jesus Christ, members of the Holy Apostolic Catholic Assyrian Church of the East, pagans, Molokan Christians, Yezidis, Jews, Baha’is, Shia Muslims, and Sunni Muslims.  According to an International Republican Institute poll released in October, 94 percent of the country’s population identify as Armenian Apostolic, 2 percent as Catholic, 3 percent other, and 1 percent none.  According to members of the Jewish community, there are approximately 800 Jews in the country.

Yezidis are concentrated primarily in agricultural areas northwest of Yerevan around Mount Aragats, and Armenian Uniate Catholics live primarily in the north.  Most Jews, members of the Church of Jesus Christ, and Orthodox Christians reside in Yerevan, along with a small community of Muslims.  Most Muslims are Shia, including Iranians and temporary residents from the Middle East.