Longest International Borders

Name the countries that lie along the world's 20 longest international borders.

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Last updated: May 20, 2016

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First submitted	March 14, 2014
Times taken	210,796
Average score	80.8%
Rating	4.99

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km	Countries
8,891	Canada
8,891	United States
6,846	Russia
6,846	Kazakhstan
5,308	Chile
5,308	Argentina
4,677	Mongolia
4,677	China
4,053	Bangladesh
4,053	India

km	Countries
3,645	China
3,645	Russia
3,543	Russia
3,543	Mongolia
3,400	Brazil
3,400	Bolivia
3,380	China
3,380	India
3,141	United States
3,141	Mexico

km	Countries
2,912	Pakistan
2,912	India
2,511	Dem. Rep. of the Congo
2,511	Angola
2,430	Pakistan
2,430	Afghanistan
2,410	Dem. Rep. of the Congo
2,410	Rep. of the Congo
2,237	Mali
2,237	Mauritania

km	Countries
2,203	Kazakhstan
2,203	Uzbekistan
2,200	Brazil
2,200	Venezuela
2,185	China
2,185	Myanmar
2,130	Vietnam
2,130	Laos
2,050	Colombia
2,050	Venezuela

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105 Recent Comments

Level 42

Apr 27, 2014

you should accept Zaire for democratic republic of congo

+38

Level 21

Apr 27, 2014

Congo stopped calling themselves Zaire in 1997

Level 42

Nov 21, 2021

They accept both the DRC and the Republic of Congo as "Congo", and as Quickman said, They stopped calling the DRC "Zaire" since 1997.

Level 86

Apr 27, 2014

Same problem as with Burma... Zaire was only Mobuto's idea. From the day that Kabila overthew him, the country became Congo again.

Level 81

May 8, 2014

and since then there hasn't been a single human rights abuse anywhere in the country.

Level 51

Sep 19, 2017

In the words of Dr Seuss: 'A country's a country, no matter how evil and dictatorial.' Seriously, if you can call North Korea by its name, you can do it with the DRC.

Level 66

Apr 27, 2014

26/26 at first try! :)

Level 49

Apr 28, 2014

100%! Woo hoo!

+12

Level 58

Apr 29, 2014

The shortest border in the world is Zambia and Botswana - 150 m (that's meters, not miles).

Level 43

Nov 2, 2016

The parts of Spain on the African continent include one 85-meter border.

Level 65

Jan 7, 2020

Adding other borders with Morroco the border is kinder, aprox. 15 km, more thank 10 tiene que bordering between Botswana and zambia

Level 59

Jan 7, 2020

That's also the place that is closest to a 4-corners in the World on a national level.

+21

Level 75

Sep 7, 2020

Actually the shortest border is between Peru and Kyrgyzstan: 0km

Level 28

Dec 5, 2020

So true! Nice thinking.

Level 70

Apr 29, 2014

Missed Mali and Uzbekistan.

Level 70

May 11, 2014

According to wikipedia Colombia-VENEZUELA border is 2050km long, not Colombia-Brazil

Level ∞

May 11, 2014

Thanks. This has been fixed.

Level 44

Sep 4, 2014

I missed Vietnam and Laos... shame

Level 28

Dec 5, 2014

24/26 on first try. Missed only Mali + Mauritania. Never have I been more proud of my random geog knowledge..;)

Level 65

Jan 4, 2015

100% with 49 seconds left. Great quiz.

Level 59

Feb 26, 2015

How did I miss Vietnam?!?!?!

Level 65

May 5, 2015

Got stuck with '2' to go, couldn't think of the partnership, and finally tried DRC, so glad I did,cause I got 100%%%%%%%:) great quiz. thanks

Level 85

Jul 16, 2015

got 100%! guessed vietnam and laos at the last minute! and i LIVE in vietnam!

Level 66

May 1, 2016

Im so happy that I got a map in my head, so I can see every country and their borders in my head, so it was easy because of that.

Level 20

May 15, 2016

What about Norway and Sweden? That border is huge!

Level 86

May 16, 2016

Yeah, it is huge... on a Mercator projection map.

Level 19

Jan 16, 2019

But still pretty huge, over 1600km long

Level 49

Dec 7, 2020

europe=small

this is the answer to half of the questions in life

Level 76

May 16, 2016

It might be worth mentioning in the instructions that borders can be broken - for example, Russia-China is broken in two by Mongolia, and the 3,645 km is the aggregate of the two lengths.

Level 69

May 16, 2016

100% with 59 seconds still on the clock!! Cool quiz idea!

Level 45

May 18, 2016

Got the lot with 24 seconds to spare.

Level 72

Jul 24, 2016

Sweden and Norway have a long border.

Level 19

Jan 16, 2019

1600 km

Level 32

Aug 6, 2016

I missed: Bangladesh, Myanmar, Uzbekistan, Congo and DR Congo 😒

Level 40

Sep 5, 2016

Phew managed to get through that unscathed my memory must be back

Level 42

Oct 17, 2016

I missed Los. I tried every Asian except for Laos.

Level 43

Nov 1, 2020

It's Laos and Vietnam..... Vietnam borders 3 countries

Level 51

Dec 11, 2016

Dang it, missed Afghanistan. I thought I went through all my "-stan" countries...obviously not!

Level 64

Feb 8, 2017

norway sweden?

Level 28

Dec 5, 2020

That border is still pretty bug at 1600 km, although just a tiny bit too small for this quiz. ;)

Level 68

Feb 8, 2017

100%!!

Level 78

Aug 10, 2017

Did not expect Vietnam and Laos... only one I missed :(

Level 70

Sep 19, 2017

Just got Colombia with 1 second remaining........

Level 32

Dec 19, 2017

Got them all with 1 minute to spare!

Level 44

Mar 13, 2018

Brasil is not spelled with a Z ;)

Level 12

Mar 14, 2018

It is in America.

Level 32

Mar 30, 2018

Got them all first go..Almost missed Burma with 7 seconds to go,

Level 6

Apr 4, 2018

Only missed Vietnam-Laos, and Mali-Mauritania

Level 48

May 26, 2018

Nailed it first try with 54 seconds left. Really cool quiz though!

Level 71

May 29, 2018

How is Laos-Vietnam longer than Sudan-Chad for example?

Level 53

Jul 23, 2021

Rivers/terrain vs straight lines. Rivers and terrain meander which makes their lengths significantly longer than they appear.

Level 56

May 30, 2018

interesting that no-one else had problems with angola

Level 71

Aug 4, 2018

2:26 remaining. what am i doing?

Level 72

Aug 4, 2018

Hey completely off topic sorry, but there was a quiz several months ago on Jetpunk about the wealthiest countries GDP per capita for 2018 and the number one was Luxembourg. I want to look at the source to verfiy it but does anyone remember the name of that quiz on here?

Level ∞

Aug 4, 2018

Here's our official quiz on the subject. Monaco is #1.

Level 72

Aug 8, 2018

Thanks. Is Monaco still #1 for that in 2018?

Level 64

Aug 5, 2018

100%!!! YES!

Level 49

Aug 7, 2018

what about norway and Sweden

Level 63

Mar 1, 2019

Their border looks very long compared to other European borders but not compared to the ones in this quiz. "Only" 1,619 km.

Level 37

Jul 6, 2019

It is however the longest in Europe

Level 49

Dec 7, 2020

europe=small

this is the answer to half of the questions in life

Level 61

Jan 1, 2019

Missed Laos, Mali and Mauritania. :(

Level 27

Mar 16, 2019

ez pz

Level 47

Nov 9, 2019

How can Bangladesh–India border be soooo long?

Level 77

Nov 10, 2019

The border has all sorts of zigzags, lines and is just really ridiculous. Look at it on Google Maps

Level 16

Apr 22, 2020

This was weird but i somehow made it

Level 24

Apr 29, 2020

I did not expect mali mauritania!

Level 67

Aug 22, 2020

1:35 left :DDD

Level 49

Sep 10, 2020

There are quite a few comments above re Norway/Sweden... something one would only think if one uses a Mercator map. Out of interest, do any of your school systems still use the Mercator projection? I know the US school system still does, but am curious of any others.

Level 28

Dec 5, 2020

It is still 1600 km, which is fairly long, but yes it is too short to make the cut.

Level 49

Dec 7, 2020

europe=small

this is the answer to half of the questions in life

Level 61

Sep 25, 2021

I’m not sure you read this comment. Did you just paste it when seeing Norway-Sweden?

Level 31

Nov 1, 2020

Glad I'm in good company with the only two I missed, lol!

Level 74

Dec 5, 2020

first try 0:24 left

Level 23

Dec 7, 2020

Level 49

Dec 7, 2020

how is bangladesh-india boder so long if bangladesh is comparatively tiny??

Level 65

Jan 15, 2021

Yes! First time, I did not expect that in a million years!

Level 28

Jan 30, 2021

missed Angola

Level 69

Jun 12, 2021

Missed Angola, Mali, Mauritania

Level 33

Jul 8, 2021

I think there are some mistakes here. Algeria, Libya, and Egypt are not on this list, and yet Bangladesh, which is a tiny country, is, and so is Laos.

Level 37

Apr 26, 2023

India surrounds Bangladesh on three sides, and Laos may be small, but it is also long.

Level 32

Jul 8, 2021

Missed Angola.

Level 68

Aug 9, 2021

It is hard to believe that the India-Bangladesh border is longer than the United States-Mexico border.

Level 61

Sep 25, 2021

If you like this quiz, try this one:

https://www.jetpunk.com/user-quizzes/1306568/countries-of-the-world-by-longest-bordering-country

Level 18

Oct 1, 2021

This is subjective because of the coastline paradox.

Level 25

Dec 19, 2021

How did I manage to miss Bolivia, Pakistan, and Afghanistan???

Level 24

Dec 30, 2021

I missed Chile -_-

Level 28

Mar 3, 2022

easily done

Level 32

Apr 20, 2022

I kept guessing 'Khazakstan' and wondering why it wasn't showing up. Spelling! *sigh*

Level 33

Jun 3, 2022

why was the "brasil" type in not accepted for brazil?

Level 49

Dec 5, 2022

Because this is an English-language quiz, and the name of that particular country in English is Brazil.

Level 64

Jun 30, 2022

at first attempt i got 2 second left ... OMG

Level 31

Jul 19, 2022

only missed Mauritania

Level 37

Aug 28, 2022

Got it with 2:20 left

Level 60

Dec 5, 2022

..the easiest one...

Level 42

Dec 5, 2022

I did consider guessing Afghanistan and Uzbekistan, but I talked myself out of it.

Not the best decision.

Level 51

Dec 19, 2022

Mali and Mauritania took me a bit since I went thru the americas asia europe and a thing that surprised me was that malaysia and indonesia wasn't there since i thought they had quite a long of an border but tookme a minute to get mali

Level 37

Apr 26, 2023

No Norway/Sweden?

Level 45

Jun 7, 2023

that was pretty easy

but hard at the same time.

i like it! :)

Level 50

Oct 9, 2023

Got all 26 with 1 second left. #goodvibes

Level 23

Mar 1, 2024

Forgot Mali-Mauritania border...

Level 55

Mar 16, 2024

I've gotta stop typing Mauritabia instead of Mauritania

Level 18

May 27, 2024

I've gotta stop typing "myamnar"

Level 29

May 30, 2024

Forgot Chile & Argentina. No idea how.

Level 22

Jun 10, 2024

Yay i just got badge

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