Main country
Japan
140,702 people
98.8% of total
Surname
Kaai
142,427 worldwide · 31 countries
142,427
Total population
31
Countries
1 in every 56,871
Frequency
Rarity
Common
Dispersion
Regional
Top countries
1
Japan
140,702
98.8%
2
Kenya
632
0.4%
3
Nigeria
395
0.3%
4
United States
354
0.2%
5
Thailand
164
0.1%
World distribution
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