Main country
Japan
29,194 people
96.2% of total
Surname
Iwanaga
30,360 worldwide · 22 countries
30,360
Total population
22
Countries
1 in every 266,798
Frequency
Rarity
Moderate
Dispersion
Regional
Top countries
1
Japan
29,194
96.2%
2
Brazil
605
2%
3
United States
434
1.4%
4
Peru
28
0.1%
5
Thailand
22
0.1%
World distribution
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