Etymology and distribution of 河智.

The Japanese surnames etymology dictionary.
https://play.google.com/store/apps/details?id=info.jigensha.jcedfreeGoogle Play で手に入れよう https://apps.apple.com/us/app/id1471109324
↑オフライン検索できるアプリもどうぞ

Popuration of 河智.

カンマ区切りで複数の名字を指定できます。

Etymology of 河智

Distribution of 河智
Ranking
1 Ishikawa-ken(About 30)
2 Hokkaidou(About 10)
3 Toukyou-to(About 10)
4 Hyougo-ken(Very rare)
4 Shimane-ken(Very rare)
4 Shiga-ken(Very rare)
4 Kanagawa-ken(Very rare)
4 Gunma-ken(Very rare)
4 Shizuoka-ken(Very rare)