Which Letter Has the Highest Population?

If you merge every country starting with the same letter, which starting letters would have the largest total population? Source, as of 1 January 2026. Population in thousands. Opposite quiz here.

Three WHAMMIES and you're out!

Inspired by this quiz by TEDEX which uses area instead of population.

Thanks to LegoBuilderOne for helping to declutter this quiz and assisting with the whammies.

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Last updated: March 15, 2026

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First submitted	January 1, 2026
Times taken	48
Average score	70.0%
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Population	Letter
2,004,928	I
1,643,928	C
551,159	U
480,371	P
469,356	B

Population	Letter
403,917	S
395,168	M
366,064	N
296,399	T
230,167	A

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1 Comments

Level 55

Jan 1, 2026

Great quiz, however some letters aren't answers but you can type them without getting whammies. Namely, H, L and O. Also, if you want to I can help you hyperlink the links to make it less cluttered.