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Most Populous Countries Bordering Each Other

Name the countries with the highest population that border each other.
Population as of January 1, 2024. More info here.
Methodology: Each country is ranked 1-196
We chose the countries that border each other with lowest average rank
Quiz by Quizmaster
Rate:
Last updated: November 19, 2023
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First submittedNovember 16, 2017
Times taken87,827
Average score87.0%
Rating4.96
4:00
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0
 / 23 guessed
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Scoring
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This beats or equals % of test takers also scored 100%
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Keep scrolling down for answers and more stats ...
Avg
Countries
1.5
India
China
3
India
Pakistan
3.5
China
Pakistan
4.5
India
Bangladesh
5.5
China
Russia
6.5
United States
Mexico
9
China
Vietnam
11
Pakistan
Iran
14
India
Myanmar
14.5
China
Myanmar
15
Brazil
France
Avg
Countries
17.5
Bangladesh
Myanmar
17.5
Brazil
Colombia
17.5
Iran
Turkey
18
D. R. Congo
Tanzania
18.5
Ethiopia
Kenya
19
China
Afghanistan
20.5
Pakistan
Afghanistan
20.5
United States
Canada
21
Brazil
Argentina
21
France
Germany
21
Ethiopia
Sudan
69 Comments
+8
Level 66
Nov 16, 2017
I believe China/Afghanistan should be on here with an average of 20.
+4
Level 85
Nov 16, 2017
Or 20.5.
+4
Level 77
Nov 17, 2017
Google says it's 42nd. China is 1st. Average: 21.5.
+12
Level ∞
Nov 17, 2017
According to my source, Afghanistan is 45th:https://en.wikipedia.org/wiki/List_of_countries_and_dependencies_by_population

Edit 2023: We've phased out Wikipedia and now use our own source based on projections from the 2022 UN World Population Prospects.

+11
Level 77
Nov 18, 2017
That's crazy. The google source says 34.66 million in 2016. Wikipedia gives 29.72 million for 2017. The difference in between is HUGE. No idea why and what is correct. For quiz purposes great as long as there's one source for it all.
+2
Level 66
Oct 3, 2019
Afghanistan is 43rd, according to your source. It should be on here with China with 22 as an average.
+5
Level ∞
Oct 3, 2019
When we update the quiz we will take another look.
+4
Level 42
Aug 31, 2020
Because there is war so there is no fixed population and it is hard to calculate
+2
Level 57
Oct 14, 2020
That's because the country has lost a massive number of people because of the war, and it's hard to calculate how many, that's why sometimes it has diferent numbers.
+7
Level ∞
Nov 19, 2023
It's the opposite. Afghanistan GAINED a huge number people during the war and the sources were slow to update.
+8
Level 62
Nov 17, 2017
I love these ranking quizzes. Excellent idea quizmaster
+4
Level 63
May 15, 2018
Damn Kaliningrad! Didn't get Poland. 23/24
+1
Level 16
May 15, 2018
100% with 3:27
+3
Level 83
May 15, 2018
So even though there appears to be no land border between them, Lake Tanganyika is considered a true border for DRC and Tanzania? I have always thought "border" to mean land border.
+22
Level 82
May 15, 2018
If you discounted lakes you'd probably have to throw out borders across rivers, too, and that would eliminate a lot of bordering countries.
+3
Level 83
May 15, 2018
True. I guess there aren't many examples of borders like this that are exclusively lakes rather than rivers. I suppose if I asked myself "what country IS the border in that area?", there wouldn't be any other answer.
+3
Level 67
Sep 5, 2021
This is interesting because I definitely would not say that Illinois borders Michigan, even though if their borders were extended into lake Michigan they would touch.
+1
Level 66
Jan 25, 2024
Oh my god you're right that's insane!
+1
Level 65
May 15, 2018
Indonesia/Malaysia should be here with a score of 20.5
+3
Level 90
May 15, 2018
On the cited source ( https://en.wikipedia.org/wiki/List_of_countries_and_dependencies_by_population ) Indonesia is 4th and Malaysia 41st. (41+4)/2 = 22.5, putting it just off this list.
+1
Level 25
May 15, 2018
Fun quiz!
+5
Level 47
May 15, 2018
You scored 22/24 = 92%.

Sorry Ethiopia and Kenya - you were duly forgotten

+3
Level 70
May 15, 2018
I wonder if it would change much if you averaged the populations instead of the rankings, would it be too diferent
+10
Level 53
Apr 27, 2020
You'd probably only have countries that border either China or India on this list if you did that
+1
Level 58
May 15, 2018
I think Indonesia Malaysia should be in here.
+2
Level 90
May 15, 2018
They average 22.5 which puts them just off the list.
+1
Level 34
May 15, 2018
I forgot about the land that Russia owns, so I forgot Poland
+2
Level 64
May 15, 2018
Is this for human population?
+20
Level 70
Apr 16, 2020
No, animal
+1
Level 59
Feb 13, 2023
Total population of anemone
+1
Level 64
May 15, 2018
100%!
+5
Level 75
May 16, 2018
When the only one you miss is one you thought you already typed. That happens far too often with me.
+1
Level 48
May 17, 2018
France and Brazil?
+2
Level 38
May 27, 2022
French Guiana*
+2
Level 43
Jun 19, 2018
Poland and Germany?
+3
Level 70
Apr 16, 2020
38 and 19, that would give the average of 28,5 so not close enough it must be an average of 22 or under to make it onto this list. (France and Germany is 22 and obviously 19 again)
+1
Level 55
Apr 6, 2020
got stuck on france and brazil for a while, figured it out after i typed all the countries in south america and nothing worked
+1
Level 74
May 28, 2020
100% first try
+1
Level 68
May 28, 2020
I don't think I would have gotten France and Germany if France didn't populate because I got it with Brazil. I guess I could say that with others too, but in every other case I knew at least one of the countries was quite populous.
+1
Level 56
May 30, 2020
Exact opposite for me! France/Germany was an obvious pair, but I didn't think of France/Brazil.
+1
Level 51
Dec 21, 2020
Brazil + France through me off so HARD I typed all it's borders and was like "WHAT!" and when I saw the answers I was like: 😡 🤬 FRENCH GUIANA HOW COULD YOU!
+2
Level 80
Mar 4, 2021
Managed them all, much to my surprise.
+2
Level 55
Mar 22, 2021
Effective Strategy: Start Guessing populated countries, then guess all the ones they border.
+1
Level 45
Jul 8, 2021
missed only tanzania
+1
Level 72
Mar 7, 2022
Average ranking is not very "scientific". Why not average population?
+4
Level 79
Nov 19, 2023
Why is it not "scientific" and why does it need to be? Average population would just be any country that borders China and/or India, and some countries border both.
+1
Level 43
Apr 25, 2022
i typed a in tanzania in the last second but failed
+1
Level 66
Nov 4, 2022
Was expecting Poland and Ukraine or France and Italy.
+1
Level 68
Nov 8, 2022
What is the average? Is it the ratio between the populations?
+3
Level 79
Nov 19, 2023
"Methodology: Each country is ranked 1-196. We chose the countries that border each other with lowest average rank."

If it was by ratio then France would have almost 2 billion people based on its score with Germany lol.

+1
Level 26
Nov 10, 2022
I got all but Colombia. I didn't realize it was that populous
+1
Level 56
Nov 10, 2022
Needs an update. Ukraine lost a LOT of population and by proxy Poland gained much of that.
+1
Level 47
Nov 24, 2022
Nice quiz, got them all in 1:46 :)
+2
Level 80
Mar 4, 2023
I don't care how technically true it is-- I will always think that saying France borders Brazil is ridiculous.
+4
Level 72
Nov 19, 2023
Why? It's not like French Guiana is an overseas territory or something, it's fully integrated into France, and independence was rejected in a 2010 referendum.
+2
Level 75
Nov 19, 2023
Remembered Africa exists with 20 seconds left...
+1
Level 79
Nov 19, 2023
The second most populous continent? That Africa?
+1
Level 58
Nov 20, 2023
Real. That was the last part I did too
+5
Level 57
Nov 20, 2023
Quizmaster can see into the future now? Is there no end to his talents?
+1
Level 58
Nov 20, 2023
This is a great quiz!
+2
Level 62
Nov 21, 2023
pop as of january 1st 2024? boy we november 2023
+1
Level 54
Nov 21, 2023
India and Afghanistan do share a border, and by that they would be on the list.
+1
Level 72
Nov 26, 2023
Ehhhh…..no, they don’t. Unless you are re-subsuming Pakistan into India and I could think of a few million people who may object to that.

Google maps is your friend here ;-)

+1
Level 35
Jan 25, 2024
Forgot French Guinea
+1
Level 69
Jan 25, 2024
My favourite type of quiz!
+1
Level 51
Jan 25, 2024
I got it all right but I'm still confused by the wording of this quiz...
+1
Level 56
Apr 16, 2024
Example: India most populated country-1

China (borders India) second most populated country-2

Average between 1 and 2 is 1.5

+1
Level 68
Jan 25, 2024
1:42 used
+1
Level 33
Apr 25, 2024
I typed in my last answer as the game was loading my score, it hit zero as I put in the last letter. I barely got 100%.