You can check flows of the three streams:
- In-migration: the Japanese moving into one prefecture from another place within the country.
- Out-migration: the Japanese moving out of one prefecture to another place within the country.
- Net internal migration: the difference between in-migration and out-migration.
immigration = in-migration
emigration = out-migration
net migration = net internal migration
Few things worth checking on the map:
Fukushima-ken – high out-migration.
Fukuoka-ken – one of the main industrial zones in the country with high immigration from prefectures that are around.
Hokkaido-ken - high out-migration; the prefecture has one fourth of Japan's total arable land, tourism is the second largest source of income for the local inhabitants.
Special thanks go to the Statistics Bureauand the Director-General for Policy Planning of Japan.