Main country
Japan
7,870 people
28.2% of total
Surname
Koi
27,878 worldwide · 87 countries
27,878
Total population
87
Countries
1 in every 290,552
Frequency
Rarity
Moderate
Dispersion
Global
Top countries
1
Japan
7,870
28.2%
2
Papua New Guinea
4,079
14.6%
3
Cameroon
3,521
12.6%
4
Kenya
2,445
8.8%
5
Vietnam
2,115
7.6%
World distribution
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