From DiscoverNikkei.org
Demographics - Japanese Prewar Emigration by Prefecture, 1899-1941
Source: Japan International Cooperation Agency (JICA), Kaigai ijū tōkei (FY 1952-FY 1993) (Tōkyō, 1994), 133.
| Prefecture |
Number of Emigrants |
| Hiroshima | 96,848 |
| Okinawa | 72,227 |
| Kumamoto | 68,245 |
| Fukuoka | 51,240 |
| Yamaguchi | 45,223 |
| Wakayama | 30,980 |
| Fukushima | 25,923 |
| Hokkaidō | 22,674 |
| Okayama | 20,839 |
| Nagasaki | 19,331 |
| Niigata | 15,633 |
| Kagoshima | 14,085 |
| Shiga | 13,246 |
| Saga | 9,382 |
| Shizuoka | 9,296 |
| Kōchi | 9,044 |
| Ehime | 8,714 |
| Tōkyō | 8,468 |
| Hyōgo | 8,442 |
| Kanagawa | 8,389 |
| Aichi | 7,855 |
| Miyagi | 7,805 |
| Ōsaka | 7,696 |
| Mie | 6,025 |
| Fukui | 5,988 |
| Nagano | 5,942 |
| Yamanashi | 4,557 |
| Yamagata | 4,305 |
| Kagawa | 4,296 |
| Tottori | 4,221 |
| Ōita | 4,054 |
| Toyama | 3,182 |
| Akita | 3,158 |
| Gifu | 3,002 |
| Shimane | 2,704 |
| Iwate | 2,685 |
| Gunma | 2,405 |
| Ibaraki | 2,352 |
| Ishikawa | 2,047 |
| Miyazaki | 1,975 |
| Chiba | 1,948 |
| Aomori | 1,889 |
| Kyōto | 1,815 |
| Tokushima | 1,536 |
| Saitama | 1,435 |
| Tochigi | 1,321 |
| Nara | 1,225 |
| Unknown | 9 |