Etymology and distribution of 井戸川.

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!

「井戸川」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 井戸川

Distribution of 井戸川
Ranking
1 Fukushima-ken(About 600)
2 Miyazaki-ken(About 500)
3 Toukyou-to(About 200)
4 Hokkaidou(About 200)
5 Kanagawa-ken(About 110)
5 Saitama-ken(About 110)
7 Chiba-ken(About 60)
8 Ibaraki-ken(About 40)
9 Nagasaki-ken(About 30)
9 Oosaka-fu(About 30)
9 Hyougo-ken(About 30)
12 Hiroshima-ken(About 20)
12 Miyagi-ken(About 20)
14 Shizuoka-ken(About 20)
14 Okayama-ken(About 20)
16 Nara-ken(About 10)
17 Kagoshima-ken(About 10)
17 Gunma-ken(About 10)
17 Fukuoka-ken(About 10)
17 Aichi-ken(About 10)
17 Yamagata-ken(About 10)
17 Yamaguchi-ken(About 10)
17 Ooita-ken(About 10)
17 Kyouto-fu(About 10)
25 Nagano-ken(Very rare)
25 Tochigi-ken(Very rare)
25 Tokushima-ken(Very rare)
25 Iwate-ken(Very rare)
25 Gifu-ken(Very rare)
25 Toyama-ken(Very rare)
25 Mie-ken(Very rare)