Etymology and distribution of 日本.

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
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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!
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「日本」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 日本

Distribution of 日本
Ranking
1 Koufu-shi(About 20)
2 Jousou-shi(About 20)
3 Okayama-shi(About 10)
3 Yokohama-shi Tsurumi-ku(About 10)
5 Kawanishi-shi(About 10)
5 Toyonaka-shi(About 10)
5 Marugame-shi(About 10)
5 Kimotsuki-gun Kimotsuki-chou(About 10)
9 Kyouto-shi Nishikyou-ku(Very rare)
9 Akashi-shi(Very rare)
9 Koube-shi Suma-ku(Very rare)
9 Chichibu-shi(Very rare)
9 Ooita-shi(Very rare)
9 Suita-shi(Very rare)
9 Oosaka-shi Higashisumiyoshi-ku(Very rare)
9 Oosaka-shi Nishiyodogawa-ku(Very rare)
9 Higashioosaka-shi(Very rare)
9 Miyakonojou-shi(Very rare)
9 Kai-shi(Very rare)
9 Akitakata-shi(Very rare)
9 Hiroshima-shi Saeki-ku(Very rare)
9 Kitanagoya-shi(Very rare)
9 Nagoya-shi Minami-ku(Very rare)
9 Komaki-shi(Very rare)
9 Choufu-shi(Very rare)
9 Kawasaki-shi Asao-ku(Very rare)
9 Mikata-gun Mihama-chou(Very rare)
9 Fukui-shi(Very rare)
9 Kasuya-gun Shime-machi(Very rare)
9 Tsukuba-shi(Very rare)
9 Kirishima-shi(Very rare)