「Oga」(おが)さんの名字の由来、語源、分布。

① Topography . From ridges and protruding lands. Wakayama-ken Ito-gun Katsuragi-chou There is distribution in Myoji. Kagawa-ken Nakatado-gun Man'nou-chou There are distribution in Takumi . There is Ozaka in a small bowl in the same place.

※ Kouchi-ken Tosashimizu-shi It was in Azuchi-Momoyama period in Misaki.

② Hyougo-ken Shisou-shi Yamazaki Town originated from Ogawa flowing through Aoki. It is distributed in the same place.

2017年 10月 15日更新

Whole Japan		Prefectures
レベル	3	1　Ehime-ken(About 120) 2　Oosaka-fu(About 20) 3　Hyougo-ken(About 10) 4　Kanagawa-ken(About 10) 4　Toukyou-to(About 10) 4　Hiroshima-ken(About 10) 4　Hokkaidou(About 10) 8　Tochigi-ken(Very rare) 8　Aichi-ken(Very rare) 8　Ooita-ken(Very rare)
Population	About 200
Ranking	20,771

Rank by city
1　Uwajima-shi(About 100) 2　Imabari-shi(About 10) 2　Sakai-shi(About 10) 2　Matsuyama-shi(About 10) 2　Akashi-shi(About 10) 6　Utsunomiya-shi(Very rare) 6　Chuuou-ku(Very rare) 6　Yawatahama-shi(Very rare) 6　Souraku-gun Seika-chou(Very rare) 6　Tsu-shi(Very rare)