Countries With the Most Known Serial Killers

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26. New Zealand
> Known serial killers: 10
> Share of world’s known serial killers: 0.2%
> Share of world’s population: 0.1%
> Total population, 2021: 5,122,600

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25. Thailand
> Known serial killers: 11
> Share of world’s known serial killers: 0.2%
> Share of world’s population: 0.9%
> Total population, 2021: 71,601,103

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24. Colombia
> Known serial killers: 11
> Share of world’s known serial killers: 0.2%
> Share of world’s population: 0.7%
> Total population, 2021: 51,516,562

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23. Belgium
> Known serial killers: 11
> Share of world’s known serial killers: 0.2%
> Share of world’s population: 0.2%
> Total population, 2021: 11,592,952

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22. Sweden
> Known serial killers: 12
> Share of world’s known serial killers: 0.2%
> Share of world’s population: 0.1%
> Total population, 2021: 10,415,811

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