Main country
Japan
29,076 people
87.4% of total
Surname
Koyama
33,254 worldwide · 54 countries
33,254
Total population
54
Countries
1 in every 243,580
Frequency
Rarity
Moderate
Dispersion
Global
Top countries
1
Japan
29,076
87.4%
2
Brazil
1,969
5.9%
3
United States
1,249
3.8%
4
Democratic Republic of the Congo
144
0.4%
5
Canada
126
0.4%
World distribution
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