Etymology and distribution of 坪野.

Tsubono 【坪野】^{レベル4
About 1,500}  The Japanese surnames etymology dictionary.

Tokushima-ken , Ishikawa-ken . Distribution including Bago also.

① Tokushima-ken Naka-gun Naka-chou Origin of Nakayama case (Bagou). It is distributed in the same place. Last name is Bagou.

② Ishikawa-ken Nanao-shi Originated from Oshimaya (Batani) in Shimizuihira Town. Ishikawa-ken Nanao-shi In Yoda-Shimachi tells me that it is due to a mistake when applying for the Satsuya (Baya) surname at the Meiji New surname from place name. In the estimate it is a mistake made by the official. 場谷 Batani reference.