The Nile, which stretches an extraordinary 6,650 km, remains not only the longest river in Africa but one of the longest on Earth. It threads through 11 countries, from Burundi and Uganda to Sudan and Egypt, forming the backbone of agriculture and life along its banks.

Nearly 300 million people depend directly on the Nile Basin for survival.

Flowing west to east, the Niger River, at 4,200 km, is the lifeline of West Africa, curving through Guinea, Mali, Niger and Nigeria before emptying into the Gulf of Guinea.

It supports millions of farmers and fishers and anchors some of the region’s largest urban centres. The Niger Basin Authority notes that the river sustains over 160 million people in nine countries.

In Central Africa, the Congo River runs 4,700 km, carving through one of the world’s largest rainforest ecosystems. It carries more water than any river in Africa and is second only to the Amazon globally.

The Congo Basin is home to over 80 million people and provides critical carbon storage for the planet, a fact repeatedly emphasised in global climate discussions.

To the south, the Zambezi River, which spans 2,600 km, crosses Zambia, Angola, Namibia, Botswana, Zimbabwe and Mozambique. It is the river behind Victoria Falls and fuels major hydroelectric projects such as the Kariba and Cahora Bassa dams, which power much of southern Africa.

Despite the continent's numerous water resources, the Horn of Africa continues to experience climate-driven droughts alternating with destructive floods, which amplify tensions over Nile water rights.

Hydropolitics, the politics of water, is increasingly shaping diplomatic relations. The Grand Ethiopian Renaissance Dam (GERD), for instance, remains a focal point of negotiation between Ethiopia, Sudan and Egypt.

This extraordinary statistic highlights the DRC's immense natural wealth, centred around the Congo River Basin, which spans nearly 4 million square kilometres and fuels the continent’s second-longest river.

Why does the DRC have so much water ?

Thanks to its tropical location, the DRC receives high annual rainfall, over 2,000 mm in some regions. Combined with a dense network of rivers, wetlands, and deep freshwater lakes like Lake Tanganyika, this hydrological bounty makes the DRC Africa’s water powerhouse.

Key contributors include:

The paradox: water Wealth vs. access

Despite holding over half of Africa’s surface freshwater, most Congolese people lack reliable access to clean water.

This water-access paradox underscores the need for targeted investment and sustainable management.

What needs to happen?

Organisations like Winrock International are working alongside local and national partners to:

There’s growing recognition that managing water sustainably in the DRC isn’t just a national issue—it’s a continental priority.

Why it matters for Africa and the world

With climate change accelerating droughts and water scarcity in other regions, the DRC’s freshwater reserves are increasingly vital for regional stability, food production, biodiversity, and hydropower. The Congo River alone has massive potential for renewable energy, including the long-anticipated Grand Inga Dam project.

But without equitable access and conservation, this water wealth could become a missed opportunity—or worse, a source of conflict .