The Islamic Republic of Mauritania covers 1,030,700 square kilometres on the Atlantic edge of north-western Africa, where the Sahara meets the western Sahel. It borders the disputed territory of Western Sahara to the north and northwest, Algeria to the northeast, Mali to the east and southeast, and Senegal across the lower Senegal River to the southwest; its Atlantic coastline extends for roughly 750 kilometres. Nouakchott, the capital, lies on the low sandy coastal plain. Most of the interior consists of desert plains, dune fields and rocky surfaces, interrupted by the sandstone plateaus and escarpments of Adrar and Tagant, the Hodh depression in the southeast, and isolated massifs around Tiris Zemmour. Kediet Ijill near Zouérate, at just over 900 metres, is the country’s highest point. The greener Senegal River valley forms a narrow southern belt whose water, soils and settlement contrast sharply with the sparsely populated Saharan interior.
Climate follows the same north-south gradient. Northern and central Mauritania are Saharan, with intense summer heat and extremely limited rainfall, while the far south grades into the Sahel and receives a short, highly variable wet season. Mauritania’s reporting to the UN climate system describes annual rainfall of roughly 50–150 millimetres across Saharan areas and about 150–600 millimetres in the south, although totals fluctuate strongly between years and places. The Atlantic moderates temperatures around Nouadhibou and the Banc d’Arguin more than in the interior, where hot-season temperatures commonly exceed 40°C. Rainfall is concentrated mainly between July and September in southern agricultural and pastoral zones. Long droughts, wind erosion, dune movement and land degradation affect grazing and farming, while intense downpours can also produce damaging floods. These pressures matter because much of the livestock economy and rain-fed agriculture depends on a relatively narrow belt where rainfall is more useful but still unreliable.
Ecologically, the country is overwhelmingly arid, but its desert, Sahelian and coastal systems are sharply differentiated. Sparse Saharan vegetation gives way southward to seasonal grasslands, thorn scrub and pastoral rangelands, then to irrigated fields and wetlands along the Senegal River. World Bank data put forest cover at only 0.3% of land area in 2023, reflecting Mauritania’s extreme aridity. Agriculture is concentrated in the southern wilayas, especially along the river and in rain-fed agropastoral zones, with rice, sorghum and millet among the principal food crops; livestock remains central to rural livelihoods. On the coast, Banc d’Arguin National Park protects extensive shallows, islands, seagrass beds and mudflats whose marine productivity supports fish, marine mammals and more than two million migratory waders. Diawling National Park in the Senegal delta preserves another important wetland system. Productive land and permanent surface water are therefore concentrated in limited zones that strongly shape settlement and seasonal mobility.
Long before a modern Mauritanian state existed, the territory linked Saharan pastoral societies with the markets and farming regions of the western Sahel. Sanhaja Berber confederations controlled important desert routes, while communities near the Senegal basin interacted with wider Sahelian political and commercial networks. In the eleventh century, an Islamic reform movement among Sanhaja groups developed into the Almoravid movement, which expanded north into the Maghreb and Iberia and southward into the western Sudan. From the eleventh and twelfth centuries, caravan towns including Ouadane, Chinguetti, Tichitt and Oualata became nodes of trans-Saharan trade and Islamic scholarship, linking desert routes to markets farther north and south. From the thirteenth century onward, Beni Hassan and other Maqil Arab groups moved into the western Sahara. Their prolonged competition with Sanhaja communities culminated in the seventeenth-century Char Bouba War, after which Hassaniya Arabic and Arab-Berber political hierarchies became increasingly influential. By the early modern period, emirates such as Trarza, Brakna and Adrar formed part of a political landscape shaped by pastoral power, Islamic scholarship and trade.
French expansion northward from Senegal gradually transformed this decentralized landscape into a colonial territory whose boundaries became the framework of the modern state. France established a protectorate in 1904, relying heavily on alliances with or coercion of religious leaders, emirates and tribal authorities, and Mauritania was formally incorporated into French West Africa in 1920. Colonial investment remained limited, while military resistance continued in parts of the Sahara. Mauritania became autonomous within the French Community in 1958 and gained independence on 28 November 1960. The first post-independence government centralized authority under Moktar Ould Daddah, but involvement in Western Sahara after Spain’s withdrawal in 1975 strained public finances and the armed forces; a coup removed him in 1978, and Mauritania withdrew from the conflict in 1979. Military intervention remained recurrent, including coups in 2005 and 2008, the latter overthrowing the country’s first democratically elected civilian president. A peaceful presidential transfer in 2019 marked an important break with that pattern. Slavery was formally abolished in 1981, criminalized in 2007 and addressed by stronger legislation in 2015, although international monitoring continues to raise concerns about enforcement and slavery-like practices.
Mauritania’s economy reflects the geography of a mineral-rich desert state with a productive Atlantic coast and a much narrower agricultural south. Iron ore from the Zouérate region remains a major export, while gold, copper and fish are also central merchandise earners; livestock and crop farming support many households despite their smaller share of formal output. The offshore Greater Tortue Ahmeyim project, shared with Senegal, began gas production and LNG exports in 2025, creating a new source of foreign exchange and public revenue. Latest multilateral estimates place real GDP growth in 2025 at about 4%, a slowdown from 2024 as some extractive and service activity weakened and major gas-construction work wound down. The development challenge is therefore not simply faster growth but broader value creation from mining, fisheries and energy. Commodity dependence exposes revenues and exports to world prices, while job creation, infrastructure and human-capital constraints weaken the connection between headline growth and household living standards. Diversification into processing, renewable energy and better-connected domestic markets remains a central objective.
The 2023 population and housing census counted 4,927,532 inhabitants, giving Mauritania an average density of about 4.8 people per square kilometre, but that figure conceals extreme concentration. Official territorial data derived from the census indicate that roughly three-fifths of the population is urban, reflecting decades of sedentarization and the concentration of services and employment in a few centres. Nouakchott dominates the settlement system and is administratively divided into three wilayas; Nouadhibou is the principal northern port and industrial centre, while Zouérate is tied to iron mining, Rosso and Kaédi to the Senegal River corridor, and Kiffa to the southern interior. Population is much denser in Nouakchott, the river valley and the southern agropastoral belt than in Adrar, Tiris Zemmour and the deep desert. The state is divided into 15 wilayas and 63 moughataas, with communes forming the local tier. This spatial imbalance makes provision of roads, water, electricity, schools and health services unusually costly outside the main urban and southern corridors.
Arabic is Mauritania’s official language, while the constitution recognizes Arabic, Pulaar, Soninke and Wolof as national languages. Hassaniya Arabic is the dominant spoken variety across much of the country, and French remains important in administration, business and education as a legacy of colonial rule. These linguistic patterns overlap with, but do not map neatly onto, social identities: Moorish communities include Bidan and Haratin populations, while Pulaar-speaking, Soninke and Wolof communities are concentrated especially in the south and in cities. Islam is constitutionally the religion of the people and the state, and Sunni Islam of the Maliki tradition provides the broad religious framework. Cultural life reflects the country’s position between Saharan and Sahelian worlds. Hassaniya oral poetry and music, West African praise-singing traditions, manuscript scholarship, metalwork, leatherwork and textiles all have distinct regional and social histories. The old ksour of Chinguetti, Ouadane, Tichitt and Oualata embody the long connection between caravan commerce, Islamic learning and settled oasis culture.
Transport infrastructure is organized around long distances, a few economic corridors and the need to connect mines with ports. Paved roads radiate chiefly from Nouakchott toward Nouadhibou, Rosso and Senegal, Atar and the Adrar, and east through Kiffa toward Néma and the Malian frontier, while remoter routes face greater maintenance constraints. The most distinctive railway is the more than 700-kilometre line operated by SNIM between the Zouérate iron-ore district and its loading facilities at Nouadhibou, built primarily for heavy mineral traffic. Nouakchott’s Port de l’Amitié handles much of the country’s general maritime trade, while Nouadhibou combines mineral-export, commercial and fishing functions; Nouakchott-Oumtounsy is the main international airport. Electricity access reached 52.2% of the population in 2024 according to World Bank data, with much weaker coverage in rural areas. Solar and wind resources are increasingly important to expansion plans, and new transmission investment is intended to strengthen the national grid and regional power links.
Mauritania’s international position comes from being Atlantic, Saharan, Sahelian, Arab and West African at once. It belongs to the African Union, Arab League and Organization of Islamic Cooperation, while the Senegal River Development Organization links it with Senegal, Mali and Guinea in shared water, irrigation and hydropower management. Its ports and mineral railway connect Saharan resources to global markets; borders with Mali and Western Sahara place security and migration pressures beside important trade routes; and the Greater Tortue Ahmeyim gas field adds a new economic dimension to relations with Senegal. Political continuity has increased Mauritania’s diplomatic weight in a Sahel marked by military upheaval, but geography still imposes severe constraints: water scarcity, climate variability, dispersed rural settlement, unequal infrastructure access and dependence on extractive exports all raise the cost of inclusive development. Its medium-term importance will depend less on resource abundance alone than on whether mineral, gas, fisheries and renewable-energy revenues can support employment, stronger services and a more integrated national territory.
