This paper offers a historical and spatial analysis of the relationships between religion, migration and (in)equalities in Côte d'Ivoire from the late nineteenth century to 2008. Moving beyond the narrative of an Ivorian "tradition of religious tolerance", it argues that the country's religious landscape has been shaped by enduring hierarchies between faiths, first produced by the colonial order and later reconfigured by the postcolonial state. Colonial labour policies encouraged Sahelian migration towards the forest and urban zones of the south, fostering the settlement of Muslim populations in economically, legally and religiously subordinate positions. From the 1980s onwards, economic crisis, the saturation of agricultural frontiers and the 1998 land law sharply redefined rights of access to land, particularly affecting migrant populations. The politics of "ivoirité" and the 2002-2008 politico-military conflict contributed to the politicisation of religious identities, the fragmentation of urban space and the redrawing of citizenship boundaries. Drawing on census data, historical and ethnographic literature, and urban case studies (Abobo, Yopougon, Bouaké), the article shows how religion functions as an operator of social, spatial and political sorting, producing unequal access to worship, residence and mobility. Rather than treating tolerance and intolerance as opposite states, it suggests examining the situated conditions under which religious groups are recognised, marginalised or securitised, and how these processes reshape unequal boundaries of belonging.