Biggest Biggest Cities

Name the 30 largest world cities that are also the largest city in their country.
By urban agglomeration population according to citypopulation.de
Cities that are also the national capital are in bold.
Quiz by cornflakesfu
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Last updated: October 3, 2020
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First submittedJuly 9, 2018
Times taken70
Average score86.7%
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Population
City
46,700,000
Guangzhou
40,400,000
Tokyo
31,300,000
Jakarta
30,300,000
Delhi
25,700,000
Manila
24,800,000
Seoul
23,000,000
Mexico City
22,400,000
São Paulo
22,100,000
New York
21,000,000
Cairo
20,200,000
Dhaka
19,400,000
Lagos
18,800,000
Bangkok
17,800,000
Karachi
17,300,000
Moscow
Population
City
16,400,000
Buenos Aires
16,000,000
Istanbul
15,300,000
Tehran
14,800,000
London
13,900,000
Johannesburg
12,400,000
Kinshasa
11,400,000
Paris
10,100,000
Lima
9,600,000
Bogotá
9,150,000
Taipei
8,900,000
Kuala Lumpur
8,600,000
Ho Chi Minh City
8,150,000
Luanda
8,050,000
Riyadh
7,900,000
Singapore
+1
Level 63
Jul 10, 2018
Sao Paulo is spelled wrong
+1
Level 86
Jul 10, 2018
Whoops! This is now fixed. Thanks for pointing out the error!
+1
Level 86
Feb 15, 2019
Updated for 2019. A few countries swapped places, but nobody dropped off. Most cities increased at least a little in population, but several went down.
+1
Level 60
Jul 1, 2021
You mean cities?
+1
Level 86
Jul 1, 2021
Well, yes. I suppose I was thinking about it in terms of countries because each city on the quiz is the largest city in its country.
+1
Level 86
Oct 3, 2020
Updated for latest numbers again. Just some minor shuffling. The closest cities to not make the list are Toronto (7.45M), Santiago (7.25M), and Baghdad (7M). Barring unexpected developments, it seems unlikely that any of them will be jumping onto the list in the immediate future.