Etymology and distribution of 才塚.

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 才塚.

カンマ区切りで複数の名字を指定できます。

Etymology of 才塚

Distribution of 才塚
Ranking
1 Hiroshima-ken(0.000721%)
2 Nagasaki-ken(0.000515%)
3 Kumamoto-ken(0.000456%)
4 Fukuoka-ken(Very rare)
5 Aichi-ken(Very rare)