Most Populous River Basins

Name the rivers of the world that have the most people living in their drainage basin.
Includes the area drained by the river and all its tributaries as it flows to the sea
Figures are approximate
Quiz by Quizmaster
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Last updated: November 5, 2014
First submittedNovember 4, 2014
Times taken15,338
Rating4.47
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Population
River Basin
600 m
Ganges / Brahmaputra
420 m
Yangtze
360 m
Nile
300 m
Indus
250 m
Pearl
200 m
Yellow
100 m
Mississippi
100 m
Niger
100 m
Paraná / Rio de la Plata
80 m
Danube
Population
River Basin
75 m
Amur
70 m
Krishna
60 m
Congo
60 m
Mekong
60 m
Godavari
55 m
Volga
50 m
St. Lawrence
50 m
Tigris / Euphrates
50 m
Rhine
+2
Level ∞
Nov 4, 2014
This quiz might need a couple of revisions before it is finished. There is no single source with good data for this, so I did some original research that involved a certain amount of guessing. Please let me know if there are any glaring omissions or mistakes.
+1
Level 69
Jan 9, 2017
Good quiz. I am struggling to believe though, that the Nile has a river basin population of 360 million. It just doesn't add up for me.
+2
Level 77
Jan 11, 2017
Egypt, Sudan, south Sudan, Uganda, part of Ethiopia, DRC, ... Easily 360
+1
Level 55
Aug 1, 2018
Really needs research from Quizmaster. Respect!
+1
Level 85
Nov 4, 2014
Typing "Rio de la Plata" fills in the clue for Yangtze, but does not work for Parana/RDLP. Also, Euphrates doesn't work for Tigris/Euphrates.
+1
Level ∞
Nov 5, 2014
Fixed
+1
Level 67
Dec 18, 2014
Sweet quiz idea
+4
Level 62
Dec 18, 2014
you should accept Donau as Danube, because it´s know like that in many countries
+1
Level 71
Dec 18, 2014
Love this quiz idea!
+1
Level 46
Dec 20, 2014
don't really understand this. how can Amazon not be in the list?
+6
Level ∞
Dec 20, 2014
Name a major city in the Amazon basin. There aren't many.
+2
Level 37
Feb 23, 2016
I can only think of Manaus
+1
Level 57
Apr 17, 2015
Hmm... Irrawaddy and Dnieper didn't make the cut?
+1
Level ∞
Oct 5, 2016
Good suggestions but I think both just barely miss the cut.
+1
Level 73
Jan 3, 2017
I tried Irrawaddy too, I think it just misses the cut because a huge part of Burmese population lives near it.
+1
Level 67
Apr 22, 2020
I tried dnieper, thinking I finally knew how to write it in english, but then doubted.
+1
Level 51
Feb 7, 2016
What about the Rio Grande?
+1
Level ∞
Oct 5, 2016
I'd say probably around 10-20 million.
+1
Level 73
Jan 3, 2017
Edogawa didn't make the cut? It goes well into Kantō and the population right there is massive.
+1
Level 81
Oct 10, 2018
The Edo is less than 60 km long and only passes through one metropolitan area. It's a massive metro area to be sure, but citypopulation.de still has it at less than 40 million.
+1
Level 79
Jan 9, 2017
Related quiz: River Deltas on the Map http://www.jetpunk.com/user-quizzes/154362/river-deltas-on-the-map
+1
Level 64
Jan 9, 2017
Interesting quiz.
+2
Level 47
Jan 9, 2017
Very fun. Could you do this with mountain ranges or coastlines as well?
+2
Level 65
Jan 9, 2017
Would love to see versions for mountain ranges, lakes, seas, bays and peninsulas, to name a few.
+1
Level 56
Jan 19, 2017
I only forgot Amur,Rhine & st lawrance
+1
Level 63
Jan 24, 2017
11/19 is really something for someone who is really bad at rivers. Didn't expect that to be above average (9).
+1
Level 69
Aug 9, 2018
Really thought the Zambezi could make it, as the basin is quite large. Worked it out and get to 42.7 million. Most of Zambia (83% = 13.8), Zimbabwe (57% = 9.2) and Malawi (83% = 15). Some realistic/conservative numbers for Angola (Moxoco+ = 0.7), Botswana (Chobe+ 0.1), Namibia (Zambezi 0.1), Tanzania (Distr Ileje,Kyela, Rungwe, Makete, Ludewa and Mbina - est. 0.7) and Mozambique (Tete+ = 3.1) and it seems the 50 million is a stretch. Province and district by district calculated to work out the % and population estimates. Might be useful info for another quiz though. :) https://en.wikipedia.org/wiki/Zambezi#/media/File:Zambezi_river_basin-en.svg
+2
Level 81
Oct 10, 2018
Very enjoyable quiz!
+2
Level 70
Oct 19, 2018
Agree. I learnt about a couple of rivers with which I wasn't familiar (the least-guessed two) - both in India.
+1
Level 70
Apr 17, 2019
Almost didn’t guess St. Lawrence after the Hudson failed. Glad I still did.