Main country
Japan
114,016 people
90% of total
Surname
Koga
126,744 worldwide · 69 countries
126,744
Total population
69
Countries
1 in every 63,908
Frequency
Rarity
Common
Dispersion
Global
Top countries
1
Japan
114,016
90%
2
Brazil
5,761
4.5%
3
United States
1,729
1.4%
4
Kenya
1,012
0.8%
5
Papua New Guinea
774
0.6%
World distribution
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