Apellido Iwata
Ranking por país y región
| País | Rank | Count |
| Japan | 143 | 155.8k |
| South-korea | 1563 | <1k |
| United-states | 6469 | 1.4k |
| Región | Rank | Count |
| Japan, Gifu-prefecture | 29 | 9.8k |
| Japan, Aichi-prefecture | 39 | 29.1k |
| Japan, Shimane-prefecture | 44 | 2.9k |
| Japan, Tottori-prefecture | 99 | 1.1k |
| Japan, Saitama-prefecture | 107 | 11.6k |
| Japan, Kanagawa-prefecture | 122 | 12.7k |
| Japan, Ōita-prefecture | 122 | 1.8k |
| Japan, Toyama-prefecture | 124 | 1.5k |
| Japan, Mie-prefecture | 127 | 3.0k |
| Japan, Shizuoka-prefecture | 128 | 5.5k |
| Japan, Tokyo-metropolis | 141 | 16.1k |
| Japan, Kagawa-prefecture | 154 | 1.5k |
| Japan, Hiroshima-prefecture | 172 | 3.0k |
| Japan, Kyoto-prefecture | 179 | 3.0k |
| Japan, Osaka-prefecture | 186 | 9.4k |
| Japan, Hokkaido-prefecture | 194 | 4.6k |
| Japan, Gunma-prefecture | 195 | 2.1k |
| Japan, Hyōgo-prefecture | 207 | 5.1k |
| Japan, Ibaraki-prefecture | 208 | 3.1k |
| Japan, Kumamoto-prefecture | 211 | 1.8k |
| Japan, Chiba-prefecture | 217 | 5.6k |
| Japan, Yamaguchi-prefecture | 217 | 1.2k |
| Japan, Fukuoka-prefecture | 297 | 3.4k |
| United-states, Hawaii | 767 | <1k |
| South-korea, Gyeonggi-province | 1414 | <1k |
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