A Landlocked Giant
The Republic of Chad is the fifth-largest country in Africa by area, covering approximately 1.28 million square kilometres. Landlocked at the continent's geographic heart, it borders Libya to the north, Sudan to the east, the Central African Republic to the south, Cameroon and Nigeria to the southwest, and Niger to the west. This central position has made Chad a pivot point for trans-African movement for millennia — both for human migration and for the cultural exchange that has shaped the Sahel.
Chad's terrain is a study in ecological contrasts. In the far north, the Tibesti Mountains rise to over 3,400 metres, their volcanic peaks capped with occasional snow. The central plateau descends into the vast Saharan plains of the Borkou and Ennedi regions, where eroded sandstone pillars and ancient rock art testify to a wetter past. Moving south, the land transitions through the Sahelian zone of sparse thorn scrub and seasonal grasslands before reaching the Sudanian savanna — a belt of woodland and tall grass that receives sufficient rainfall to support agriculture and river systems.
The Chari (also spelled Shari) and Logone rivers, flowing north from the highlands of Central African Republic, are the country's lifelines. They account for nearly 90 percent of Lake Chad's freshwater inflow and support densely populated agricultural floodplains that have been cultivated for at least three thousand years.
Climate Zones
Three climatic bands run roughly east-west across Chad. The Saharan zone in the north receives less than 50 mm of rainfall per year and supports almost no settled population. The Sahelian belt (100–600 mm annually) is the zone of greatest ecological stress, where the retreat of rainfall has been most severe and where Lake Chad sits. The Sudanian zone in the south (600–1,200 mm) is the country's agricultural heartland, producing millet, sorghum, cotton and groundnuts.
Ethnic Groups & Languages
Chad is one of the most ethnically and linguistically diverse countries on earth. More than 200 distinct ethnic groups are recognised, each with its own language, cultural traditions and historical territory. The country's population — estimated at 18 million in 2026 — is growing at approximately 3 percent per year, one of the highest rates in the world, placing immense pressure on already strained natural resources.
The principal ethnic clusters reflect the country's ecological zones:
- Sara peoples — the largest group, inhabiting the southern savanna zones and historically practicing sedentary agriculture along the Chari and Logone rivers.
- Arabs — widespread across the central and eastern Sahel, primarily engaged in pastoralism and long-distance trade; Arabic is the country's dominant commercial language.
- Kanem-Bornu group (Kanuri, Kanembu, Buduma) — descendants of the medieval Kanem-Bornu Empire, concentrated around the Lake Chad basin and among the most directly affected by the lake's retreat.
- Toubou — nomadic Saharan people of the Tibesti region, renowned for their endurance in extreme desert conditions.
- Fulani (Peul) — semi-nomadic cattle herders who range across the Sahelian zone of Chad and neighbouring countries, whose seasonal movements bring them into regular contact with farming communities.
Languages
Chad has two official languages: French and Arabic. French serves as the primary language of government and formal education; Arabic dominates trade and is spoken as a first or second language by the majority of the population. N'Djamena, the capital, is a multilingual city where Chadian Arabic, French, and dozens of local tongues coexist in a vivid linguistic mosaic.
N'Djamena itself sits at the confluence of the Chari and Logone rivers, just south of the lake's former shoreline. With a population exceeding 1.5 million, it is the country's only true metropolis — and the destination for many of the rural communities displaced by the lake's retreat.