Etymology and distribution of 口広.

Kuchibiro 【口広】^{レベル2
About 30}  The Japanese surnames etymology dictionary.

Chiba-ken , Kanagawa-ken , Fukushima-ken Iwaki-shi . Chiba - ken Sanmu - shi Tell him that in the Uchijido, he changed his name from Fuse 's surname in the late Edo period. 布施 Fuse reference.

* Tottori-ken Tottori-shi Higashi - cho was in the Edo period with the notation of "Koshima" at the Tottori Samurai of the Clan Office. It is unknown whether Kohshima exists.

Kuchihiro 【口広】^{レベル2
About 30}  The Japanese surnames etymology dictionary.

Ehime-ken Yawatahama-shi , Tottori-ken . Ehime-ken Yawatahama-shi Originated from Oshima (Oshima). It is distributed in the same place.