Etymology and distribution of 古庫.

The Japanese surnames etymology dictionary.
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Popuration of 古庫.

カンマ区切りで複数の名字を指定できます。

Etymology of 古庫

Distribution of 古庫
Ranking
1 Myouzai-gun Kamiyama-chou(About 20)
2 Sumoto-shi(Very rare)
2 Nagareyama-shi(Very rare)
2 Sakurai-shi(Very rare)
2 Yoshinogawa-shi(Very rare)
2 Myouzai-gun Ishii-chou(Very rare)
2 Tokushima-shi(Very rare)