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Biggest Countries with only one border

Enter the top 10 biggest countries by population that border only one other country. Dependencies and overseas territories are excluded.
Quiz by
GrandAdmiral
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Last updated: January 24, 2026
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First submittedOctober 26, 2024
Times taken554
Average score90.0%
Rating4.29
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Pop (Mln)
Answer
70,3
United Kingdom
51,6
South Korea
40,3
Canada
12,0
Haiti
11,6
Dominican Republic
Pop (Mln)
Answer
10,9
Papua New Guinea
10,4
Portugal
6,1
Denmark
5,3
Ireland
3,2
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6 Comments
+1
Level 65
Oct 27, 2024
Tunisia borders Libya and Algeria
+1
Level 58
Nov 3, 2024
fixed
+1
Level 70
Jan 24, 2026
Canada borders USA and Greenland.
+1
Level 58
Jan 25, 2026
Yes, but greenland is an oversea territory of denmark, so as stated in the quiz rules, it doesn't count
+1
Level 70
Jan 25, 2026
Canada still has two borders.
+3
Level 55
Jan 24, 2026
You should probably specify that dependent territories are excluded, because the UK borders Spain and Cyprus (Gibraltar/Akrotiri and Dhekelia) and Denmark borders Canada (via Greenland, tiny border on Hans Island) otherwise.