Etymology and distribution of 砂口.

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
在日通名大全

日本初、在日通名の研究書「在日通名大全」発売中!
ネットの電話帳 住宅地図 マッポン!

「砂口」さんの名字の分布数。

カンマ区切りで複数の名字を指定できます。

Etymology of 砂口

Distribution of 砂口
Ranking
1 Tottori-ken(About 110)
2 Oosaka-fu(About 40)
3 Miyagi-ken(About 30)
3 Hyougo-ken(About 30)
5 Toukyou-to(About 30)
6 Iwate-ken(About 10)
7 Kanagawa-ken(About 10)
7 Ishikawa-ken(About 10)
7 Aichi-ken(About 10)
7 Hiroshima-ken(About 10)
7 Kyouto-fu(About 10)
12 Shizuoka-ken(Very rare)
12 Aomori-ken(Very rare)
12 Ibaraki-ken(Very rare)
12 Gunma-ken(Very rare)
12 Fukuoka-ken(Very rare)
12 Shimane-ken(Very rare)
12 Okayama-ken(Very rare)
12 Yamagata-ken(Very rare)
12 Yamaguchi-ken(Very rare)
12 Nara-ken(Very rare)
12 Ooita-ken(Very rare)
12 Saitama-ken(Very rare)
12 Hokkaidou(Very rare)
12 Mie-ken(Very rare)