Etymology and distribution of 小口田.

Koguchida 【小口田】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Aichi-ken , Saitama-ken , Tochigi-ken . Variety of 塩谷 . Saitama-ken Sayama-shi I tell you that in Shimotomi we also wrote "Shioya" in the Edo period. 塩谷 Shioya reference. It was in the Edo period in Nagano-ken Kamitakai-gun Obuse-machi .