Why almost every Somali is Muslim: what the record shows

The number

More than 99 percent of Somalia's people are Sunni Muslims, according to the Federal Ministry of Endowments and Religious Affairs. All other faiths together are under 1 percent, including a Christian community of about 1,000 (US State Department, International Religious Freedom Report 2023, via ecoi.net). The Pew Research Center's world table puts Somalia at 98.5 percent Muslim, from a 2005 estimate (Pew Research Center). Pew has never run its own survey inside Somalia. See religion in Somalia in numbers.

Very few countries are this close to one faith. Historians and official records point to the six reasons below. Each is given with the source that makes the point.

1. Islam arrived very early

The Library of Congress country study says Islam was "probably brought to Somalia by early followers of the Prophet who sought refuge from persecution in Mecca", or through Persian and Arab merchants who settled the coast "1,000 or more years ago" (Library of Congress, Somalia: A Country Study, 1992). Local tradition holds that the first Muslims reached Zeila in the Prophet's lifetime (Masjid al-Qiblatayn, Zeila, Wikipedia). By the late 800s the Arab geographer al-Ya'qubi wrote that Muslims lived along the northern Somali coast (Islam in Somalia, Wikipedia, citing the Encyclopedia Americana).

So Islam had centuries to settle before any Christian mission reached the Somali coast in the 1880s. See how Islam reached the Somalis.

2. Faith is woven into lineage

Many Somali lineages trace their founding ancestor to a Muslim holy man from Arabia. The forefathers of large clan families, such as Sheikh Isaaq and Sheikh Daarood, are remembered in these genealogies as Arabian sheikhs who came across the sea (Ishaaq bin Ahmed, Wikipedia). Scholars read these accounts in different ways. The historian Christopher Ehret treats clan founders such as Isaaq and Darod as historical people around whom legends grew. The archaeologist Sada Mire calls Arab founding ancestors part of "the Somali Islamic myth of origin", while linking the stories to real migrations from South Arabia (Ishaaq bin Ahmed, Wikipedia, citing Ehret and Mire). The scholar Ali Jimale Ahmed reads such stories as an older origin belief recast in Islamic form (Yusuf bin Ahmad al-Kawneyn, Wikipedia, citing Ahmed, The Invention of Somalia, 1995). The anthropologist I. M. Lewis described this "total Somali genealogy", whose top branches reach the Prophet's tribe of Quraysh (Lewis, "Historical Aspects of Genealogies in Northern Somali Social Structure", Journal of African History, 1962).

The Library of Congress study notes that northern herders "are likely to honor lineage founders as saints" (Library of Congress, 1992). Because faith and family line are tied together, leaving Islam is seen by many as leaving the family. The US State Department reports that conversion "continued to be socially unacceptable", "seen as a betrayal of family and clan" (US State Department, 2023).

3. A teacher and a Qur'an school almost everywhere

Even among nomads, every community had a wadaad, a man of religion. The Library of Congress study calls the wadaddo "the oldest stratum of literate people in Somalia". They taught, wrote documents, judged by religious law and led prayers (Library of Congress, 1992).

Almost every child starts at the Qur'an school (dugsi or malcaamad) at age 3 or 4. A UN Peacebuilding Fund project document says Somalis "almost universally" attend for a few years, across income, place and clan. The education ministry estimates about 50,000 Qur'an schools teaching over 4 million children (UN Peacebuilding Fund, Building Peace Through Religious Education in Somalia). The same document notes that when state schools shut after 1991, the Qur'an schools kept running. See Qur'an schools and religious learning.

4. The Sufi orders and their farming villages

From the 1400s, Sufi brotherhoods spread through the towns, then the countryside. Their sheikhs founded farming villages (jamaaco) on land that elders gave "to God". In the 1950s there were more than 90 such villages in the south, with about 35,000 members (Library of Congress, 1992). Most Somalis belonged to an order at least in name. See the Sufi orders.

5. Centuries of war with Christian Abyssinia

The Library of Congress study says "loyalty to Islam reinforces distinctions that set Somalis apart from their immediate African neighbors", most of whom were Christian or followed local faiths (Library of Congress, 1992). From the 1300s the Muslim states of the Somali coast and highlands, Ifat and then Adal, fought the Christian kingdom of Abyssinia. In the 1500s Imam Ahmad of Adal led Somali and other Muslim fighters deep into the highlands (Islam in Somalia, Wikipedia). See the medieval Somali states.

In 1899 the Dervish movement of Sayyid Mohammed Abdullah Hassan again framed resistance to British, Italian and Ethiopian rule as a defence of the faith. See the Dervish movement.

6. Missions were kept out or kept small

In the British north. A French Catholic mission opened an orphanage at Daymoole near Berbera in 1891. According to a history by the Somali Christian writer Aweis A. Ali, meeting children from this orphanage was one of the things that angered the Sayyid against British rule, and the mission was expelled in 1910 (Aweis A. Ali, "A Brief History of Christian Missions in Somalia", 2020). After that the British government shut missions out. In 1927 the Colonial Secretary told Parliament that the Somaliland Protectorate was one of only two places in the Colonial Empire from which all Christian missions were excluded (Hansard, 29 July 1927). In 1937 his successor said the government had "for many years" been "obliged... to exclude all missionaries" because the people were "almost entirely" Muslim nomads (Hansard, 28 April 1937). In 1947 the question was still under review (Hansard, 30 July 1947).

In the Italian south. A Swedish Lutheran mission worked from 1896 and a Catholic mission from 1904, mostly among farming communities on the Jubba and Shabelle rivers. Italy expelled the Swedish mission in 1935 (Aweis A. Ali, 2020). The Catholic bishop claimed about 40,000 Catholics in 1940, but only about 8,500 were counted around 1950 and about 100 in 2004 (Christianity in Somalia, Wikipedia, citing the Diocese of Mogadishu).

After independence. The 1961 constitution declared the republic an Islamic state while guaranteeing freedom of religion (Library of Congress, 1992). The Mennonite and Sudan Interior missions were expelled in 1976 (Aweis A. Ali, 2020). The 2012 constitution makes Islam the state religion and bans spreading any other religion (US State Department, 2023; Constitution of Somalia, Article 2). See Christians and missions in Somalia.

How the six fit together

None of the sources gives a single cause. The Library of Congress study adds that Somalis also kept older customs inside their Islam, such as the yearly feast for the clan ancestor in the north and the rain prayer (roobdoon) among farmers in the south (Library of Congress, 1992). Later debates, such as the 1975 family law and the Islamic movements since 1950, were arguments about how to live as Muslims, not about whether to.

Read further

• I. M. Lewis, Saints and Somalis: Popular Islam in a Clan-Based Society (Red Sea Press, 1998) (review notice, BSOAS).
• Abdurahman M. Abdullahi (Baadiyow), The Islamic Movement in Somalia: A Historical Evolution with a Case Study of the Islah Movement, 1950–2000, PhD thesis, McGill University, 2011 (McGill eScholarship).
• Islam in Somalia: faith, the Sufi orders and religion in law.