Etymology and distribution of 井戸口.

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!

「井戸口」さんの名字の分布比率。

カンマ区切りで複数の名字を指定できます。

Etymology of 井戸口

Distribution of 井戸口
Ranking
1 Touhaku-gun Yurihama-chou(0.0789%)
2 Shouzu-gun Tonoshou-chou(0.0499%)
3 Tamano-shi(0.0396%)
4 Ooshima-gun Suouooshima-chou(0.0207%)
5 Hirado-shi(0.0172%)
6 Oki-gun Okinoshima-chou(0.0163%)
7 Shouzu-gun Shoudoshima-chou(0.0155%)
8 Kamimashiki-gun Mashiki-machi(0.0136%)
9 Ama-gun Kanie-chou(0.0126%)
10 Nishisonogi-gun Nagayo-chou(0.0105%)
11 Oosaka-shi Nishinari-ku(0.0101%)
12 Kamiamakusa-shi(0.00998%)
13 Kyouto-shi Nishikyou-ku(0.00989%)
14 Kounan-shi(0.00915%)
15 Mukou-shi(0.00824%)
16 Saiki-shi(0.00807%)
17 Ooda-shi(0.00712%)
18 Hioki-shi(0.00613%)
19 Yamatotakada-shi(0.00601%)
20 Kasuga-shi(0.00584%)
21 Nobeoka-shi(0.00566%)
22 Oosaka-shi Tsurumi-ku(0.00558%)
23 Nichinan-shi(0.00555%)
24 Tamana-shi(0.00552%)
25 Koganei-shi(0.00539%)
26 Chita-shi(0.00525%)
27 Takasago-shi(0.00433%)
28 Hiroshima-shi Higashi-ku(0.00417%)
29 Oosaka-shi Sumiyoshi-ku(0.00366%)
30 Oosaka-shi Ikuno-ku(0.0035%)
31 Kumamoto-shi(0.0034%)
32 Inazawa-shi(0.00328%)
33 Koga-shi(0.00321%)
34 Chiba-shi Chuuou-ku(0.00311%)
35 Kagoshima-shi(0.00301%)
36 Hiroshima-shi Nishi-ku(0.00301%)
37 Itami-shi(0.00263%)
38 Yokohama-shi Hodogaya-ku(0.00257%)
39 Yokohama-shi Kanazawa-ku(0.00242%)
40 Ueda-shi(0.00227%)
41 Oota-shi(0.00209%)
42 Koube-shi Tarumi-ku(0.00207%)
43 Ooita-shi(0.00206%)
44 Tottori-shi(0.00197%)
45 Ichihara-shi(0.00181%)
46 Hamamatsu-shi(0.00168%)
47 Himeji-shi(0.0016%)
48 Koutou-ku(0.00156%)
49 Machida-shi(0.00135%)
50 Okazaki-shi(0.0013%)
51 Toyohashi-shi(0.00129%)
52 Hachiouji-shi(0.00102%)
53 Okayama-shi(0.000689%)