Etymology and distribution of 井戸口.

Idoguchi 【井戸口】^{レベル3
About 400}  The Japanese surnames etymology dictionary.

Toyama-ken , Oosaka-fu , Kagoshima-ken .

① Topography . From the new city. Toyama-ken Toyama-shi Distributed in open. Kagoshima-ken Aira-gun Yuusui-chou From the Imadeichi gate of the gate division system that was in the Edo period in Yonaga. Miyazaki - ken Higashimorokata - gun Aya - chou based in Minamata.

② Kagoshima-ken Kimotsuki-gun Kimotsuki-chou Originated from the present city of Toyama's underwear. There was the Imadeichi gate in the same place during the Edo period.

Itoguchi 【井戸口】^{レベル3
About 400}  The Japanese surnames etymology dictionary.

Gifu-ken Hashima-shi , Aichi-ken , Okayama-ken . 井田 surname. Masaki-cho of Gifu-ken Hashima-shi is based. It was in the Edo period in the same place. Tell him that he was engaged in agriculture in the same area. Okayama-ken Akaiwa-shi It was in the Midori period during the Edo period. 井田 Ida reference.