Japan has 47 political boundaries in it within its 5 regions including Okinawa
Hokkaido- has 1 political boundaries
Tohoku- has 6 political boundaries
Kanto- has 7 political boundaries
Chubu- has 9 political boundaries
Kansai- has 7 political boundaries
Chugoku- has 5 political boundaries
Shikoku- has 4 political boundaries
Kyushu- has 7 political boundaries
Okinawa has 1 political boundaries
Hokkaido- has 1 political boundaries
Tohoku- has 6 political boundaries
Kanto- has 7 political boundaries
Chubu- has 9 political boundaries
Kansai- has 7 political boundaries
Chugoku- has 5 political boundaries
Shikoku- has 4 political boundaries
Kyushu- has 7 political boundaries
Okinawa has 1 political boundaries