Etymology and distribution of 平久井.

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!

「平久井」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 平久井

Distribution of 平久井
Ranking
1 Yaita-shi(About 130)
2 Utsunomiya-shi(About 10)
3 Sakura-shi(About 10)
3 Oota-ku(About 10)
3 Ootawara-shi(About 10)
3 Yokohama-shi Kanazawa-ku(About 10)
7 Bibai-shi(Very rare)
7 Ichikawa-shi(Very rare)
7 Urayasu-shi(Very rare)
7 Misato-shi(Very rare)
7 Kumagaya-shi(Very rare)
7 Oosaka-shi Kita-ku(Very rare)
7 Nakano-ku(Very rare)
7 Sumida-ku(Very rare)
7 Arakawa-ku(Very rare)
7 Katsushika-ku(Very rare)
7 Shioya-gun Shioya-machi(Very rare)
7 Mooka-shi(Very rare)
7 Nasu-gun Nasu-machi(Very rare)
7 Yokohama-shi Asahi-ku(Very rare)
7 Yokohama-shi Kounan-ku(Very rare)
7 Yokohama-shi Isogo-ku(Very rare)
7 Fujisawa-shi(Very rare)
7 Date-shi(Very rare)
7 Fukushima-shi(Very rare)
7 Hitachinaka-shi(Very rare)