Etymology and distribution of 忍.

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!

「忍」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 忍

Distribution of 忍
Ranking
1 Hida-shi(About 30)
2 Kamogawa-shi(About 20)
2 Oodate-shi(About 20)
4 Kashihara-shi(About 20)
5 Fukushima-shi(About 10)
6 Sapporo-shi Toyohira-ku(About 10)
6 Wakkanai-shi(About 10)
6 Tateyama-shi(About 10)
6 Saitama-shi Minuma-ku(About 10)
6 Takaishi-shi(About 10)
6 Kamo-gun Shirakawa-chou(About 10)
6 Takayama-shi(About 10)
6 Oota-ku(About 10)
6 Date-gun Kunimi-machi(About 10)
15 Souraku-gun Seika-chou(Very rare)
15 Kawanishi-shi(Very rare)
15 Kitahiroshima-shi(Very rare)
15 Yuubari-shi(Very rare)
15 Iwamizawa-shi(Very rare)
15 Asahikawa-shi(Very rare)
15 Sapporo-shi Kita-ku(Very rare)
15 Sapporo-shi Atsubetsu-ku(Very rare)
15 Sapporo-shi Higashi-ku(Very rare)
15 Sapporo-shi Shiroishi-ku(Very rare)
15 Ebetsu-shi(Very rare)
15 Tomakomai-shi(Very rare)
15 Yachimata-shi(Very rare)
15 Chiba-shi Midori-ku(Very rare)
15 Chiba-shi Wakaba-ku(Very rare)
15 Katori-shi(Very rare)
15 Sayama-shi(Very rare)
15 Tsurugashima-shi(Very rare)
15 Suita-shi(Very rare)
15 Shijounawate-shi(Very rare)
15 Oosaka-shi Yodogawa-ku(Very rare)
15 Moriguchi-shi(Very rare)
15 Hirakata-shi(Very rare)
15 Minoo-shi(Very rare)
15 Ibaraki-shi(Very rare)
15 Kadoma-shi(Very rare)
15 Takatsuki-shi(Very rare)
15 Nara-shi(Very rare)
15 Sakurai-shi(Very rare)
15 Sendai-shi Taihaku-ku(Very rare)
15 Sendai-shi Wakabayashi-ku(Very rare)
15 Gero-shi(Very rare)
15 Gifu-shi(Very rare)
15 Motosu-gun Kitagata-chou(Very rare)
15 Miyoshi-shi(Very rare)
15 Ichinomiya-shi(Very rare)
15 Nagoya-shi Naka-ku(Very rare)
15 Nagakute-shi(Very rare)
15 Tainai-shi(Very rare)
15 Sumida-ku(Very rare)
15 Suginami-ku(Very rare)
15 Hikone-shi(Very rare)
15 Yokohama-shi Asahi-ku(Very rare)
15 Yokohama-shi Kanagawa-ku(Very rare)
15 Sagamihara-shi(Very rare)
15 Kooriyama-shi(Very rare)
15 Kadzuno-shi(Very rare)
15 Tsuchiura-shi(Very rare)
15 Kasama-shi(Very rare)
15 Matsumoto-shi(Very rare)
15 Aomori-shi(Very rare)
15 Suntou-gun Nagaizumi-chou(Very rare)