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

Ratio 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(0.00273%)
2 Shimane-ken(0.000463%)
3 Shiga-ken(0.000325%)
4 Hokkaidou(0.000209%)
5 Gunma-ken(0.000203%)
6 Shizuoka-ken(0.000111%)
7 Toukyou-to(Very rare)
8 Hyougo-ken(Very rare)
9 Kanagawa-ken(Very rare)