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Biggest Cities Near a Border

Name world's most populous urban areas whose centre is within 50km of an international border.
Population according to citypopulation.de
Quiz by relessness
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First submittedSeptember 18, 2017
Last updatedSeptember 28, 2017
Times taken7,154
Rating3.87
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Keep scrolling down for answers and more stats ...
Population
Nearest Country
City
24.8 mil
North Korea
Seoul
16.0 mil
Uruguay
Buenos Aires
10.9 mil
Republic of the Congo
Kinshasa
10.5 mil
India
Lahore
8.30 mil
Cambodia
Ho Chi Minh City
7.20 mil
United States
Toronto
6.95 mil
Malaysia
Singapore
5.70 mil
Canada
Detroit
5.15 mil
Switzerland
Milan
4.93 mil
Netherlands
Cologne / Düsseldorf
3.95 mil
India
Rawalpindi / Islamabad
3.60 mil
Vatican City
Rome
Population
Nearest Country
City
3.53 mil
Lebanon
Damascus
3.30 mil
Mexico
San Diego
3.18 mil
Belgium
Rotterdam
2.90 mil
Dominican Republic
Port-au-Prince
2.68 mil
Kazakhstan
Tashkent
2.60 mil
Slovakia
Budapest
2.53 mil
United States
Vancouver
2.45 mil
Bahrain
Dammam
2.38 mil
Czech Republic
Katowice
2.25 mil
Argentina
Asunción
2.20 mil
Bulgaria
Bucharest
2.20 mil
Slovakia
Vienna
+4
level 79
Sep 18, 2017
Great quiz!
+4
level 65
Nov 3, 2018
It is, but the time limit is tough.
+3
level 70
Sep 18, 2017
very creative, good quiz!
+1
level 59
Sep 27, 2017
This is cool! I made a similar quiz a while ago. I think I made my range to large however with 100 km instead of fifty. It's kinda cool to see how the answers are different!
+1
level 72
Sep 28, 2017
Amman (5.20 mil) is 37 km from Jordan's border (a well fortified - and mined - border, where we had to show both the Jordanian, then the Israeli, border guards our passports to get across!).
+2
level 61
Jan 8, 2018
That probably doesn't count because that border is on Palestinian Territories.
+1
level 72
Sep 28, 2017
Dammam (2.45 mil) is 41 km from Bahrain at Passport Island on the King Fahd Causeway.
+2
level 76
Sep 28, 2017
I thought one of the Belgium ones was Lille... turns out it isn't that big, however large it may have seemed when I got lost in it.
+1
level 73
Jan 8, 2018
Well, you could consider OECD statistics that encompass the Belgian cities of Kortrijk and Tournai, for a total of 2.6 millions but it cannot be implemented in that quiz since it breaks an obvious rule, being a binational metro area.
+1
level 65
Jan 8, 2018
Brussels centre (Ville de Bruxelles, Grand Place) is also 49 km from the Dutch border (Zeeuws Vlaanderen, near Koewacht). Just guessing the 2.025.000 population is below the cut off. :)
+2
level 67
Jan 10, 2018
You're saying Lille is li'l?
+1
level 84
Sep 28, 2017
second Slovakia is Slovenia, right?
+2
level 77
Sep 28, 2017
No, Vienna is close to Slovakia. By the way the distance Vienna-Bratislava is only 55km...
+1
level 77
Sep 28, 2017
I was sure to have tried Katowice, this is irritating. Maybe I typed Katovice...
+1
level 78
Sep 28, 2017
Lahore definitely looks to be within 50 kms of the Indian frontier
+1
level 48
Sep 28, 2017
Added Lahore and Dammam, waiting for it to be re-approved :)
+3
level 67
Sep 28, 2017
Great idea. Needs a touch more time though.
+2
level 66
Aug 19, 2018
Agree, I never even got to the end of the list.
+1
level 70
Sep 29, 2017
Possibly Maputo and Kuwait City, depending on where the actual center is?
+1
level 65
Jan 8, 2018
Kuwait might be a stretch, but within reason Maputo to the Swaziland border would be 49 km :). The population also seems to make the 2.2 million cut off.
+2
level 62
Oct 1, 2017
Great quiz! Could you mention that the population figures are for the urban agglomeration?
+1
level 64
Jan 8, 2018
Katowice is wrong - it's part of the Upper Silesia conurbation and only has about 300 thousand ppl
+1
level 66
Jan 8, 2018
Probably the same story as Rotterdam. Citypopulation regards it as one big agglomeration.
+1
level 50
Jan 8, 2018
Kolkata is only 242 km away from Bangladesh.
+3
level 54
Jan 8, 2018
which is still significantly more than 50 miles
+1
level 69
Jul 7, 2018
Porto Alegre is only 1,600 kilometers from a border (guessing).
+2
level 44
Jan 8, 2018
More time!!
+1
level 68
Jan 8, 2018
Cologne and Dusseldorf are two distinct cities that can hardly be called a common urban area. You might as well include Bonn, Duisburg, Leverkusen, Moenchengladbach, and Neuss as well.
+1
level 65
Jan 8, 2018
Citypopulation.de takes "the Ruhr" and Cologne/Düsseldorf as it's two Urban / Metro Areas. Lots to argue about. Adding Ruhr in this one would be just as weird as any arbitrary other choice.
+1
level 69
Jul 7, 2018
Lots of people do. On a satellite image it's one blob.
+1
level 56
Jan 8, 2018
I thought it was capital cities... I was starting to have a panic attack when Havana, Nassau, nor Ottowa were working for USA.
+3
level 75
Jan 8, 2018
I enjoy the geography quizzes, but it seems it is getting difficult to find a topic that hasn't yet been covered. I worry that someday we will find ourselves being quizzed on such things as "major cities whose names were changed within the past century which are are situated within 100 miles of a capital city in another country whose name ends in ia and whose flag has no red on it."
+1
level 61
Jan 8, 2018
What about Santiago?
+1
level 40
Jan 9, 2018
Since when HAS DETROIT 5 MILLION POPULATION????
+1
level 77
Nov 12, 2018
it's probably the combined statistical area of nine counties around it (as used by US statistics sources), as even the urban area in 2010 was only 3.7m. That covers an area of about 75 miles across that is linked with the city.
+1
level 66
Jan 10, 2018
Cologne/Dusseldorf should not count, because those are two distinctly separate cities. And even combined they don't have more than 2 million people.
+1
level 63
Mar 21, 2018
Great quiz, I only got 18, nice challenge.
+1
level 64
Jun 15, 2018
21/24, that was hard.
+2
level 18
Jan 29, 2019
Oh, come on! I spelled Buenas Aires wrong. :(
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