A Igreja no Japão atualmente, está dividida em 16 dioceses.

Veja os nomes das dioceses, e quais estados ela abrange:

Diocese de Sapporo –

Hokkaido

Diocese de Sendai –

Miyagi/ Aomori/ Iwate/ Fukushima

Diocese de Niigata–

Niigata/ Yamagata/ Akita

Diocese de Saitama –

Saitama/ Tochigi/ Gunma/ Ibaraki

Diocese de Tokyo

Tokyo/ Chiba

Diocese Yokohama

Kanagawa/ Shizuoka/ Nagano/ Yamanashi

Diocese Nagoya

Aichi/ Gifu/ Ishikawa/ Fukui/ Toyama

Diocese de Kyoto

Kyoto/ Shiga/ Nara/ Mie

Diocese de Osaka

Osaka/ Hyogo/ Wakayama

Diocese de Hiroshima

Hiroshima/ Yamaguchi/ Shimane/ Okayama/ Tottori

Diocese de Takamatsu

Kagawa/ Ehime/ Tokushima/ Kochi

Diocese de Fukuoka

Fukuoka/ Saga/ Kumamoto

Diocese de Nagasaki

Nagasaki

Diocese de Oita

Oita/ Miyasaki

Diocese de Kagoshima

Kagoshima

Diocese de Naha

Okinawa