Ivory Coast is roughly 42 per cent Muslim and 39 per cent Christian, and the two are distributed geographically: Islam predominates in the north, Christianity in the south. That division tracked closely onto the country's civil wars in the 2000s — and in the middle of the country stands the largest church building in the world, in a town most people have never heard of.
The country whose name is a sacred object
Ivory Coast's political capital, Yamoussoukro, and its economic one, Abidjan, sit within the territory of the Akan peoples, whose religious framework centres on a supreme creator, Nyame, approached through lesser deities and ancestors.
Among the Baoulé — Houphouët-Boigny's own people — and the related Akan groups of Ghana, the golden stool and comparable regalia are not symbols of office but the repository of a people's collective soul. Chieftaincy is a religious institution before it is an administrative one, and the funerals of chiefs remain among the largest ceremonial events in the country.
This is why traditional authority persisted alongside colonial and then republican government rather than being displaced by it: the chief's legitimacy rested on a sacred trust that no colonial decree could transfer.
Why the line runs east to west
The religious geography follows an older economic one. Islam arrived from the north, carried down trans-Saharan trade routes by Dyula merchants over centuries, and took hold in the savanna zone where those routes ran.
Christianity arrived from the sea, with French missionaries and colonial administration, and concentrated in the forested south where the ports, the plantations and later the capital were built.
The result is a country divided by climate zone into two religious regions, with the boundary running roughly through the middle. That is not unusual in West Africa — Nigeria has a comparable pattern — but Ivory Coast's version acquired a specific political charge.
Ivoirité, and a war about who counts as Ivorian
Ivory Coast's post-independence prosperity depended on migrant labour, much of it from Burkina Faso and Mali, working the cocoa plantations. Those workers were overwhelmingly Muslim, and many settled permanently.
In the 1990s, as the economy weakened, a political doctrine known as ivoirité emerged, defining authentic Ivorian identity in ways that excluded northerners and those of migrant descent. Its sharpest application was electoral: Alassane Ouattara, a northern Muslim, was barred from presidential candidacy on nationality grounds.
A failed coup in 2002 became a rebellion that split the country in half along broadly the religious line, with rebel forces holding the north. The 2010 election, in which Ouattara was declared the winner and the incumbent Laurent Gbagbo refused to concede, triggered a short second war that killed around 3,000 people.
It would be wrong to call these religious wars. The drivers were land tenure, citizenship, and control of cocoa revenue. But the fault line they broke along was the same one that separates the country's faiths, and mosques and churches were both attacked.
A basilica bigger than St Peter's
Yamoussoukro is a town of modest size in the centre of the country, and it is the official capital — designated in 1983 because it was the birthplace of Félix Houphouët-Boigny, who led Ivory Coast from independence in 1960 until his death in 1993.
There he built the Basilica of Our Lady of Peace, consecrated by Pope John Paul II in 1990 and recognised by Guinness World Records as the largest church building in the world. Its dome is modelled on St Peter's in Rome and is taller, though the design was kept deliberately narrower so as not to claim precedence over the original.
It seats about 7,000 with standing room for far more, in a town that at the time had a small Catholic population and a country that is not majority Catholic. Its stained glass includes a panel showing Houphouët-Boigny himself among the worshippers.
The cost was enormous and disputed — Houphouët-Boigny maintained he paid from personal funds — and it was built as the economy was deteriorating. The Vatican accepted the consecration on the condition that a hospital be built alongside it; the hospital took decades to materialise.
Cocoa, land, and sacred ground
Ivory Coast is the world's largest cocoa producer, and the crop is grown in the forested south and west — the same regions that hold the country's sacred groves and the indigenous land tenure systems attached to them.
Cocoa expansion has consumed an enormous share of Ivorian forest over the past sixty years, and with it groves that particular lineages held as ritual sites. Where migrant farmers acquired land under arrangements that autochthonous communities later disputed, the argument was often simultaneously about tenure, ethnicity and desecration.
That is a large part of why land conflict in the west has been so intractable: the claims are not only economic. Reforestation programmes now sometimes work through traditional authorities for exactly this reason, protecting groves as a route to protecting forest.
What Ivorian Islam looks like
Ivorian Muslims are overwhelmingly Sunni and Maliki, with a strong Sufi presence — Tijaniyya and Qadiriyya orders, as across much of West Africa — alongside growing reformist currents.
The community is not confined to the north in practice. Decades of internal migration have made Abidjan, the largest city and economic capital, home to a very large Muslim population, and its Plateau mosque and the Riviera mosque are major institutions.
The Higher Council of Imams, COSIM, is the main representative body, and it has generally worked with the state rather than against it — including during the civil war years, when northern Muslims were widely treated as suspect regardless of citizenship.
Ivorian Islam has generally been quietist politically, and the country has not seen the jihadist violence that has spread across the Sahel — with the exception of the 2016 attack at Grand-Bassam, in which gunmen killed 19 people at a beach resort. Border security in the north has been substantially reinforced since.
Two capitals, two kinds of authority
Ivory Coast's split capital arrangement has a religious dimension that is easy to miss. Yamoussoukro holds the basilica and the formal seat of government; Abidjan holds the ministries that actually function, the population and the money.
The basilica's location was a personal decision by one man about his birthplace, and it left the country's most conspicuous religious monument in a town with limited means to fill it. Sunday congregations are typically a small fraction of capacity, and the building is visited more as a landmark than used as a parish church.
It stands as a monument to a particular era of African state-building, in which enormous prestige projects were treated as national statements — and as an object lesson in what happens when the statement outlives the economy that paid for it.
Churches old and new
Ivorian Christianity is split between an established Catholic Church, mainline Protestant denominations, and a large and expanding evangelical and Pentecostal sector concentrated in Abidjan.
The country also produced one of West Africa's most consequential indigenous Christian movements through William Wadé Harris, a Liberian preacher who walked through the coastal region in 1913–15 dressed in white, carrying a bamboo cross, and is credited with converting well over 100,000 people in about eighteen months — an evangelisation on a scale European missionaries had entirely failed to achieve.
Harris told converts to burn their traditional shrines and, when no church existed, to wait for teachers who would come. The Harrist Church survives as a denomination, and much of the region's later Methodist and Catholic growth was built on ground he had already turned.
Abidjan, where the map stops working
The north–south framing describes the countryside better than it describes the city. Abidjan holds something over five million people drawn from every region and several neighbouring countries, and its neighbourhoods sort by origin as much as by faith.
Treichville and Adjamé have long-established Muslim populations and major mosques; Cocody and the Plateau are more associated with the Christian professional class; Abobo and Yopougon, the largest and poorest communes, contain everything at once and were among the worst-affected during the 2010–11 violence.
Mixed marriages are common and not remarkable, and both Eid and Christmas are public holidays observed across the city. The civil wars were fought over citizenship and land rather than doctrine, and Abidjan's religious mixing continued through them.
Masks, forests and what preceded both
Indigenous religion remains present, most visibly in the west among the Dan and Wè peoples, whose masking traditions are among the best known in West Africa. Masks there are not decorative objects but the physical presence of spirits, activated in performance and owned by specific lineages.
Sacred groves, initiation societies such as Poro among the Senufo of the north, and divination practices continue alongside Islam and Christianity, and the same person may participate in more than one. Census categories capture this poorly, and the share of the population recorded as practising traditional religion — usually a few per cent — substantially understates its reach.
Ivory Coast today is largely at peace, with Ouattara having governed since 2011, and the religious divide is no longer the mobilising force it was in the 2000s. The underlying questions about land and citizenship that made it dangerous have not been fully resolved. Our Ivory Coast country guide covers the country in the round.