Etymology and distribution of 花月.

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 花月.

カンマ区切りで複数の名字を指定できます。

Etymology of 花月

Distribution of 花月
Ranking
1 Kagoshima-ken(About 30)
2 Oosaka-fu(About 20)
3 Fukuoka-ken(About 10)
4 Kyouto-fu(About 10)
4 Chiba-ken(About 10)
4 Toukyou-to(About 10)
4 Kanagawa-ken(About 10)
4 Shizuoka-ken(About 10)
9 Hyougo-ken(Very rare)
9 Aichi-ken(Very rare)
9 Shiga-ken(Very rare)
9 Kumamoto-ken(Very rare)
9 Nagano-ken(Very rare)