Etymology and distribution of 伊久.

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!

「伊久」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 伊久

Distribution of 伊久
Ranking
1 Okayama-shi(About 150)
2 Bizen-shi(About 30)
3 Takatsuki-shi(About 10)
3 Minamitsuru-gun Fujikawaguchiko-machi(About 10)
3 Setouchi-shi(About 10)
6 Himeji-shi(Very rare)
6 Koube-shi Higashinada-ku(Very rare)
6 Koube-shi Nada-ku(Very rare)
6 Matsudo-shi(Very rare)
6 Mishima-gun Shimamoto-chou(Very rare)
6 Sakai-shi(Very rare)
6 Oosaka-shi Higashisumiyoshi-ku(Very rare)
6 Fujiyoshida-shi(Very rare)
6 Kurashiki-shi(Very rare)
6 Akaiwa-shi(Very rare)
6 Ichinomiya-shi(Very rare)
6 Meguro-ku(Very rare)
6 Kawasaki-shi Asao-ku(Very rare)
6 Yokohama-shi Naka-ku(Very rare)