Main country
Japan
21,747 people
97.5% of total
Surname
Okayama
22,295 worldwide · 18 countries
22,295
Total population
18
Countries
1 in every 363,310
Frequency
Rarity
Moderate
Dispersion
Regional
Top countries
1
Japan
21,747
97.5%
2
Brazil
343
1.5%
3
United States
170
0.8%
4
United Arab Emirates
8
0%
5
Philippines
6
0%
World distribution
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