Etymology and distribution of 川久保.

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!

「川久保」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 川久保

Distribution of 川久保
Ranking
1 Saga-ken(0.121%)
2 Nagasaki-ken(0.0536%)
3 Kouchi-ken(0.0379%)
4 Nagano-ken(0.0205%)
5 Yamanashi-ken(0.0165%)
6 Toukyou-to(0.0148%)
7 Tochigi-ken(0.0142%)
8 Kanagawa-ken(0.0126%)
9 Fukuoka-ken(0.00949%)
10 Saitama-ken(0.00844%)
11 Fukui-ken(0.00813%)
12 Kagoshima-ken(0.00712%)
13 Niigata-ken(0.00676%)
14 Chiba-ken(0.0067%)
15 Miyazaki-ken(0.00645%)
16 Oosaka-fu(0.00541%)
17 Wakayama-ken(0.00479%)
18 Yamaguchi-ken(0.0043%)
19 Shizuoka-ken(0.00422%)
20 Fukushima-ken(0.00402%)
21 Aichi-ken(0.0039%)
22 Nara-ken(0.00386%)
23 Ehime-ken(0.00369%)
24 Kumamoto-ken(0.00365%)
25 Hyougo-ken(0.00361%)
26 Kyouto-fu(0.00316%)
27 Iwate-ken(0.00314%)
28 Gunma-ken(0.00304%)
29 Ibaraki-ken(0.00299%)
30 Toyama-ken(0.00205%)
31 Ooita-ken(0.00193%)
32 Shimane-ken(0.00185%)
33 Mie-ken(0.00175%)
34 Hokkaidou(0.00175%)
35 Shiga-ken(0.00162%)
36 Kagawa-ken(0.00153%)
37 Hiroshima-ken(0.00144%)
38 Tokushima-ken(0.0014%)
39 Gifu-ken(0.00132%)
40 Miyagi-ken(0.00104%)
41 Okayama-ken(0.00061%)
42 Akita-ken(0.0003%)
43 Aomori-ken(0.000262%)