「Iwakoke」(いわこけ)さんの名字の由来、語源、分布。

Niigata-ken Sado-shi · Niigata-ken Niigata-shi east section. There is an example where a raby means "east".

2018年 1月 10日更新

Whole Japan		Prefectures
レベル	3	1　Hiroshima-ken(About 30) 2　Kanagawa-ken(Very rare) 2　Nara-ken(Very rare) 2　Saitama-ken(Very rare)
Population	About 50
Ranking	44,347

Rank by city
1　Shoubara-shi(About 20) 2　Atsugi-shi(Very rare) 2　Miyoshi-shi(Very rare) 2　Iruma-shi(Very rare) 2　Ikoma-shi(Very rare) 2　Hiroshima-shi Aki-ku(Very rare) 2　Hiroshima-shi Minami-ku(Very rare) 2　Hiroshima-shi Saeki-ku(Very rare)