Countries included in basin

Area (km²)

Amazon

Peru, Bolivia, Venezuela, Colombia, Ecuador, Brazil

6,144,727

Congo

Cameroon, Central African Rep., Democratic Rep. of Congo, Equatorial Guinea, Gabon, Rep. of Congo

3,680,000

Nile

Uganda, Sudan, Egypt, Ethiopia, Zaire, Kenya, Tanzanian, Rwanda, Burundi

3,254,853

Mississippi

USA, Canada

3,202,185

Paraňa

Brazil, Argentina, Paraguay, Bolivia, Uruguay

2,954,500

Ob

Russia, Kazakstan, China, Mongolia

2,950,800

Yenisey

Russia, Mongolia

2,557,800

Lake Chad

Chad, Niger, Central African Republic, Nigeria, Algeria, Sudan, Cameroon, Chad, Libya

2,388,700

Lena

Russia

2,306,743

Niger

Nigeria, Mali, Niger, Guinea, Algeria, Cameroon, Burkina Faso, Benin, Ivory Coast, Chad, Sierra Leone

2,133,200

Amur-Heilong

Russian Federation, People’s Republic of China, Mongolia

2,129,700

Yangtze

China

1,900,000

Indus/Brahmaputra

India, Pakistan, Afganistan, China, Nepal

1,165,500

Murray-Darling

Australia

1,061,469

Tigris-Euphrates

Turkey, Syria, Iraq

970,000

Yukon

Canada, USA

916,667

Ganges

India, Nepal, Bangladesh

907,000

Yellow

China

800,000

Mekong

China, Myanmar, Cambodia

795,000