The U.S. government estimates the total population at 42.3 million (midyear 2019 estimate), more than 99 percent of whom are Sunni Muslims following the Maliki school. 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 Protestant Church of Algeria (EPA), Lutherans, the Reformed Church, Anglicans, and an estimated 1,000 Egyptian Coptic Christians. Religious leaders’ unofficial estimates of the number of Christians range from 20,000 to 200,000. According to the Christian advocacy nonprofit organization Open Doors USA, there are approximately 125,000 Christians. According to government officials and religious leaders, foreign residents make up most of the Christian population. Among the Christian population, the proportion of students and immigrants from sub-Saharan Africa without legal status has also increased in recent years. Christian leaders say citizens who are Christians predominantly belong to Protestant groups.

Christians reside mostly in Algiers, the Kabilye region in Bejaia, and the provinces of Tizi Ouzou, Annaba, Ouargla, and Oran.

The U.S. government estimates the population at 1.5 million (midyear 2019 estimate). According to the government, there are approximately 689,000 citizens, constituting less than half of the total population. According to 2018 U.S. estimates, Muslims make up 73.7 percent of the total population, Christians 9.3 percent, Jews 0.1 percent, and others 16.9 percent (Hindus, Baha’is, Sikhs, and Buddhists).

The government does not publish statistics regarding the sectarian breakdown between Shia and Sunni Muslims. Most estimates from NGOs state Shia Muslims represent a majority (55 to 60 percent) of the citizen population. Local sources estimate 99 percent of citizens are Muslim, while Christians, Hindus, Baha’is, and Jews together constitute the remaining 1 percent. According to Jewish community members, there are approximately 36 Jewish citizens, from six families, in the country.

Most of the foreign residents are migrant workers from South Asia, Southeast Asia, Africa, and Arab countries. Local government estimates report approximately 51 percent of foreign residents are Muslim, 31 percent Hindus, Buddhists, Baha’is, and Sikhs, 17 percent Christians (primarily Roman Catholic, Protestant, Syrian Orthodox, and Mar Thoma from South India), and less than 1 percent Jewish.

The U.S. government estimates the population at 101.8 million (midyear 2019 estimate). Most experts and media sources state that approximately 90 percent of the population is Sunni Muslim and approximately 10 percent is Christian (estimates range from 5 to 15 percent). Approximately 90 percent of Christians belong to the Coptic Orthodox Church, according to Christian leaders.

Other Christian communities together constitute less than 2 percent of the population and include Anglican/Episcopalian and other Protestant denominations, Armenian Apostolic, Catholic (Armenian, Chaldean, Melkite, Maronite, Latin, and Syrian), and Orthodox (Greek and Syrian) Churches. The Protestant community includes Apostolic Grace, Apostolic, Assemblies of God, Baptists, Brethren, Christian Model Church (Al-Mithaal Al-Masihi), Church of Christ, Faith (Al-Eyman), Gospel Missionary (Al-Kiraaza bil Ingil), Grace (An-Ni’ma), Independent Apostolic, Message Church of Holland (Ar-Risaala), Open Brethren, Pentecostal, Presbyterian, Revival of Holiness (Nahdat al-Qadaasa), and Seventh-day Adventist. Jehovah’s Witnesses account for 1,000-1,500 persons, according to media estimates, and there are also an estimated 150 members of The Church of Jesus Christ of Latter-day Saints (Church of Jesus Christ), the vast majority of whom are expatriates. Christians reside throughout the country, although the percentage of Christians is higher in Upper Egypt and in some sections of Cairo and Alexandria, according to religious and civil society groups.

Scholars estimate that Shia Muslims comprise approximately 1 percent of the population. Baha’i representatives estimate the size of the community to be between 1,000 and 2,000. There are very small numbers of Dawoodi Bohra Muslims, Ahmadi Muslims, and expatriate members of various groups.

According to a local Jewish nongovernmental organization (NGO), there are six to 10 Jews. There are no reliable estimates of the number of atheists.

The U.S. government estimates the total population at 38.9 million (midyear 2019 estimate). According to 2010 government statistics, the most recent available, 97 percent of the population is Muslim. Shia Muslims, predominantly Arabs but also including Turkoman, Faili (Shia) Kurds, and others, constitute 55 to 60 percent of the population. Sunni Muslims are approximately 40 percent of the population, of which Arabs constitute 24 percent, Kurds 15 percent, and Turkomans the remaining 1 percent. Shia, although predominantly located in the south and east, are the majority in Baghdad and have communities in most parts of the country. Sunnis form the majority in the west, center, and north of the country.

Christian leaders estimate there are fewer than 250,000 Christians remaining in the country, with the largest population – at least 200,000 – living in the Ninewa Plain and the IKR in the north of the country. According to Christian leaders, the Christian population has declined over the past 17 years from a pre-2002 population estimate of between 800,000 and 1.4 million persons. Approximately 67 percent of Christians are Chaldean Catholics (an eastern rite of the Roman Catholic Church), and nearly 20 percent are members of the Assyrian Church of the East. The remainder are Syriac Orthodox, Syriac Catholic, Armenian Catholic, Armenian Apostolic, and Anglican and other Protestants. There are approximately 2,000 registered members of evangelical Christian churches in the IKR, while an unknown number, mostly converts from Islam, practice the religion secretly.

Yezidi leaders continue to report that most of the 400,000 to 500,000 Yezidis in the country reside in the north, and approximately 360,000 remain displaced. Estimates of the size of the Sabean-Mandean community vary. According to Sabean-Mandean leaders, 10,000 remain in the country, mainly in the south, with between 750 and 1,000 in the IKR and Baghdad. Baha’i leaders report fewer than 2,000 members, spread throughout the country in small groups, including approximately 500 in the IKR. The Shabak number between 350,000 and 400,000, three-fourths of whom are Shia. Most Sunni Shabak and some Shia Shabak reside in Ninewa. Armenian leaders report a population of approximately 7,000 Armenian Christians. According to Kaka’i (known as Yarsani or Ahl al-Haq in Iran) activists, their distinct ethnic and religious community has approximately 120,000 to 150,000 members and has long been located in the Ninewa Plain and in villages southeast of Kirkuk, as well as in Diyala and Erbil.

There are fewer than six adult members in the Baghdad Jewish community, according to a local Jewish community leader. In the IKR, there are 70 to 80 Jewish families, according to the Jewish representative in the KRG Ministry of Endowment and Religious Affairs (MERA). There are possibly more, as some Jewish families do not openly acknowledge their religion for fear of persecution, according to the KRG MERA, and NGO sources. According to the KRG Ministry of Endowment and Religious Affairs, there are approximately 60 Zoroastrian families in the IKR.

According to the International Organization for Migration, as of December, nearly 1.5 million persons remain displaced within the country, predominantly in Erbil, Dohuk, and Ninewa Provinces, compared with 1.8 million persons at the end of 2018. Population movements are multidirectional, with some persons fleeing their homes and others returning home. According to the KRG’s Joint Crisis Coordination Center in the KRG, 40 percent of internally displaced persons (IDPs) are Sunni Arabs, 30 percent Yezidis, 13 percent Kurd (of several religious affiliations), and 7 percent Christians. Other religious minorities comprise the remaining 10 percent.

The U.S. government estimates the population at 10.7 million (midyear 2019 estimate). According to U.S. government estimates, Muslims, virtually all of whom are Sunni, make up 97.2 percent of the population. Some church leaders estimate that Christians make up approximately 1.8 percent of the country’s population. Groups constituting less than 1 percent of the population include Buddhists, Baha’is, Hindus, and Druze (who are treated as Muslims by the government). According to the Royal Institute for Interfaith Studies (RIIFS), there is also a small community (consisting of a few families) of Zoroastrians. The Ministry of Labor issued more than 300,000 work permits to foreign workers during the year, but civil society sources note that the number of migrant workers exceeds 800,000. Most of the migrant workers are from Egypt, South and East Asia, and sub-Saharan Africa. Migrant workers from sub-Saharan Africa and South and East Asia are often Christian or Hindu. There are more than 744,000 refugees registered with the UN High Commissioner for Refugees from 57 countries of origin, including more than 654,000 Syrians and 66,000 Iraqis. The Syrian and Iraqi refugee populations are mostly Sunni Muslim. Shia Muslims and Christians account for less than one third of the Iraqi refugee population.

The U.S. government estimates the total population at 3.0 million (midyear 2019 estimate). The Public Authority for Civil Information (PACI), a local government agency, reports there are 1.4 million citizens and 3.3 million noncitizens. The national census does not distinguish between Shia and Sunni Muslims. PACI estimates approximately 70 percent of citizens are Sunni Muslims, while the remaining 30 percent are Shia Muslims (including Ahmadi and Ismaili Muslims, whom the government counts as Shia). Community leaders have indicated there are 290 Christian citizens and a handful of Baha’i citizens. There are no known Jewish citizens.

According to information from PACI released in 2018, 64 percent of expatriates are Muslim, 26 percent Christian, and 10 percent from non-Abrahamic faiths. Sources in various noncitizen communities state that approximately 5 percent of the expatriate Muslims are Shia, while Buddhists and Hindus account for half of the non-Abrahamic faith population. Informal estimates by members of different faiths indicate there are approximately 250,000 Hindus, 25,000 Bohra Muslims, 10,000-12,000 Sikhs, 7,000 Druze, and 400 Baha’is.

While some geographic areas have higher concentrations of either Sunnis or Shia, the two groups are distributed quite uniformly throughout most of the country.

The U.S. government estimates the total population at 6.9 million (midyear 2019 estimate). According to reports by the International Organization for Migration, 12 percent of the population are migrants. Sunni Muslims represent between 90 and 95 percent of the population, Ibadi Muslims account for between 4.5 and 6 percent, and the remainder includes small communities of Christians, Hindus, Baha’is, Ahmadi Muslims, and Buddhists. Many members of the Amazigh ethnic minority are Ibadi Muslims. Nearly all non-Muslim residents in the country are foreigners.

Estimates of the number of Christians in the country vary. According to Open Doors USA’s 2020 World Watch List Country Profile (which covers 2019), there are 36,200 Christians. In 2015, Open Doors USA estimated 150 to 180 of these were Libyan nationals who converted from Islam.

Foreign Christian communities consist almost exclusively of sub-Saharan African migrants and Filipino foreign workers, with smaller numbers of Egyptian migrants and a small number of other foreign residents of European nationalities. According to Christian groups in Tripoli, most of the Egyptian Christians are Copts. Most sub-Saharan African and Filipino migrants are Catholic, and the Catholic diocese of Tripoli estimates its followers include 5,000 sub-Saharan and 1,500 Filipino individuals. Estimates on the numbers of other Christian groups vary. According to Open Doors USA, these include Anglicans, Greek and Russian Orthodox, and nondenominational Christians.

According to the World Holocaust Remembrance Center Yad Vashem, no Jews reside permanently in the country.

The U.S. government estimates the total population at 34.6 million (midyear 2019 estimate). More than 99 percent of the population is Sunni Muslim, and less than 0.1 percent of the population is Shia Muslim, according to U.S. government estimates. Groups together constituting less than 1 percent of the population include Christians, Jews, and Baha’is.

According to Jewish community leaders, there are an estimated 3,000 to 3,500 Jews, approximately 2,500 of whom reside in Casablanca. Some citizen Christian community leaders estimate there are between 2,000 and 6,000 Christian citizens distributed throughout the country; however, the Moroccan Association of Human Rights estimates there are 25,000 Christian citizens. One media source reported that while most Christians in the country are foreigners, there are an estimated 8,000 Christian citizens and that “several thousand” citizens have converted, mostly to Protestant churches.

Foreign-resident Christian leaders estimate the foreign-resident Christian population numbers at least 30,000 Roman Catholics and an estimated 10,000 Protestants, many of whom are recent migrants from sub-Saharan Africa or lifelong residents of the country whose families have resided and worked in the country for generations but do not hold citizenship. There are small foreign-resident Anglican communities in Casablanca and Tangier. There are an estimated 3000 foreign-residents who identify as Russian and Greek Orthodox, including a small foreign-resident Russian Orthodox community in Rabat and a small foreign-resident Greek Orthodox community in Casablanca. Most foreign-resident Christians live in the Casablanca, Tangier, and Rabat urban areas, but small numbers of foreign Christians are present throughout the country, including many who are migrants from sub-Saharan Africa.

Shia Muslim leaders estimate there are several thousand Shia citizens, with the largest proportion in the north. In addition, there are an estimated 1,000 to 2,000 foreign-resident Shia from Lebanon, Syria, and Iraq. Leaders of the Ahmadi Muslim community estimate their numbers at 600. Leaders of the Baha’i community estimate there are 350-400 members throughout the country.

BBC Arabic reports that 15 percent of the population identifies as nonreligious, up from under 5 percent in 2013.

The U.S. government estimates the total population at 3.6 million (midyear 2019 estimate). The government’s National Center for Statistics and Information estimates the population at 4.7 million; citizens constitute 57 percent of the population. The government does not publish statistics on the percentages of citizens who practice Ibadhi, Sunni, and Shia forms of Islam. In 2015 the Dubai-based Al Mesbar Center estimated Ibadhi Muslims at 45 percent of the citizen population, Sunnis at nearly 50 percent, and Shia Muslims, Hindus, and Christians at a combined 5 percent.

Academic sources state the majority of non-Muslims are foreign workers from South Asia. Noncitizen religious groups include Hindus, Muslims, Buddhists, Sikhs, Baha’is, and Christians. Christians are centered in the major urban areas of Muscat, Sohar, and Salalah and include Roman Catholics, Eastern Orthodox, members of the Church of Jesus Christ, and Protestants.

The U.S. government estimates the total population as 2.4 million (midyear 2019 estimate). Citizens make up approximately 12 percent of the population, while noncitizens account for approximately 88 percent. Most citizens are Sunni Muslims, and almost all of the remaining citizens are Shia Muslims. Reliable figures are unavailable, but estimates based solely on the religious composition of expatriates suggest Muslims, while they are the largest religious group, likely make up less than half of the total population. The breakdown of the noncitizen population between Sunni, Shia, and other Muslim groups is not available.

Other religious groups, which are comprised exclusively of expatriates, in descending order of size include Hindus, almost exclusively from India and Nepal; Roman Catholics, primarily from the Philippines, Europe, and India; and Buddhists, largely from South, Southeast, and East Asia. Smaller groups include Anglicans and Protestant denominations, Egyptian Copts, Baha’is, and Greek and other Eastern Orthodox.

The U.S. government estimates the country’s total population at 33.6 million (midyear 2019 estimate), including more than 12 million foreign residents. Between 85 and 90 percent of the approximately 20 million citizens are Sunni Muslims.

Shia Muslims constitute 10 to 12 percent of the citizen population and at least one-quarter of the Eastern Province’s population. Approximately 80 percent of Shia are “Twelvers” (Shia who recognize 12 imams) and are primarily located in the Eastern Province. The Nakhawala, or “Medina Shia,” are also Twelvers and reside in small numbers in the western Hejaz region. Estimates place their numbers at approximately 1,000. Twelver Shia adhere to the Ja’afari school of jurisprudence. Most of the remaining Shia are Sulaimani Ismailis, also known as “Seveners” (those who branched off from the Twelvers to follow Isma’il ibn Ja’afar as the Seventh Imam). Seveners number approximately 500,000 and reside primarily in Najran Province, where they probably constitute a majority of the province’s inhabitants. Another branch of Sevener Shia, the Bohra Ismailis, probably number at least a few hundred, most of whom are of South Asian origin. Pockets of Zaydis, members of another branch of Shia Islam, numbering a total of approximately 20,000, reside primarily in the provinces of Jizan and Najran along the border with Yemen.

Foreign embassies indicate the noncitizen population, including many undocumented migrants, is mostly Muslim. According to a 2010 survey by the Pew Research Center, of the country’s total population (including foreigners), there were approximately 25.5 million Muslims, 1.2 million Christians (including Eastern Orthodox, Protestants, and Roman Catholics); 310,000 Hindus; 180,000 religiously unaffiliated (including atheists, agnostics, and individuals who did not identify with any particular religion); 90,000 Buddhists; 70,000 followers of folk religions; and 70,000 adherents of other religions.

The U.S. government estimates the total population at 11.6 million (midyear 2019 estimate), of which approximately 99 percent is Sunni Muslim. Christians, Jews, Shia Muslims, Baha’is, and nonbelievers constitute less than 1 percent of the population. There are approximately 7,000 Christians who are citizens, according to the Christian community, most of whom are Anglicans or other Protestants. The MRA estimates there are approximately 30,000 Christians residing in the country, most of whom are foreigners, and of whom 80 percent are Roman Catholic. Catholic officials estimate their church membership at fewer than 5,000, widely dispersed throughout the country. The remaining Christian population is composed of Protestants, Russian Orthodox, French Reformists, Anglicans, Seventh-day Adventists, Greek Orthodox, Jehovah’s Witnesses, and The Church of Jesus Christ of Latter-day Saints. The Jewish community numbers approximately 1,400, according to the MRA. One-third of the Jewish population lives in and around the capital, and the remainder lives on the island of Djerba and in the neighboring town of Zarzis. There is a small Baha’i community, but no reliable information on its numbers is available.

The U.S. government estimates the total population at 9.8 million (midyear 2019 estimate). Approximately 11 percent of the population are citizens, of whom more than 85 percent are Sunni Muslims, according to media reports. The vast majority of the remainder are Shia Muslims, who are concentrated in the Emirates of Dubai and Sharjah.

Of the estimated 89 percent of noncitizen residents, the majority comes from South and Southeast Asia. Although no official statistics are available for what percentage of the noncitizen population is Muslim or the breakdown between Sunni and Shia Muslims, media estimates suggest less than 20 percent of the noncitizen Muslim population is Shia.

Of the total population (both citizen and noncitizen), the 2005 census, the most recent, found 76 percent of the population is Muslim, 9 percent Christian, and 15 percent from other noncitizen religious groups comprising mainly Hindus and Buddhists, and also including Parsis, Baha’is, Druze, Sikhs, and Jews. Ahmadi Muslims, Ismaili Muslims, and Dawoodi Bohra Muslims together constitute less than 5 percent of the total population and are almost entirely noncitizens. The Pew Research Center estimated that in 2010, 76.9 percent of the total population was Muslim, 12.6 percent Christian, 6.6 percent Hindu, 2 percent Buddhist, with the remaining belonging to other faith traditions.

The U.S. government estimates the total population at 29.3 million (midyear 2019 estimate). More than 99 percent of the population is Muslim (2010 estimate), associating their beliefs with either the Shafi’i order of Sunni Islam or Zaydi Islam, a distinct form of Shia Islam. There are also significant numbers of Sunni followers of the Maliki and Hanbali schools, and significant numbers of Ismaili and Twelver followers of Shia Islam. While there are no official statistics, the U.S. government estimates 55 percent of the population to be Sunni and 45 percent Zaydi. Jews, Baha’is, Hindus, and Christians, many of whom are refugees or temporary foreign residents, comprise less than 1 percent of the population. Christian groups include Roman Catholics and Anglicans.

There is no firm estimate of the number of persons of Indian origin or of those who practice Hinduism, Sikhism, or the Dawoodi Bohra variant of Ismaili Shia Islam residing in the country. The pre-conflict Hindu population was 150,000 (2010 estimate), concentrated in Aden, Mukalla, Shihr, Lahaj, Mokha, and Hudayah. According to one source, the current number of Indian nationals is fewer than 3,000. Many members of the Indian-origin community have resided in the country for generations and hold Yemeni nationality.

The Jewish community is the only indigenous non-Muslim minority religious group. Reports estimate approximately 50 Jews remain, concentrated in Sana’a and Raydah.