Main country
Japan
29,754 people
97% of total
Surname
Kuroiwa
30,662 worldwide · 20 countries
30,662
Total population
20
Countries
1 in every 264,171
Frequency
Rarity
Moderate
Dispersion
Regional
Top countries
1
Japan
29,754
97%
2
Brazil
442
1.4%
3
United States
338
1.1%
4
Peru
86
0.3%
5
Canada
7
0%
World distribution
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