Etymology and distribution of 平久保.

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!

「平久保」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 平久保

Distribution of 平久保
Ranking
1 Toride-shi(0.0425%)
2 Nikkou-shi(0.032%)
3 Shirakawa-shi(0.0204%)
4 Moriya-shi(0.0202%)
5 Abiko-shi(0.012%)
6 Wakayama-shi(0.0114%)
7 Inashiki-shi(0.00856%)
8 Kanuma-shi(0.00821%)
9 Yashio-shi(0.00728%)
10 Saitama-shi Minuma-ku(0.00711%)
11 Kashima-shi(0.00701%)
12 Yokohama-shi Nishi-ku(0.00684%)
13 Jousou-shi(0.00655%)
14 Mutsu-shi(0.00534%)
15 Higashikurume-shi(0.00483%)
16 Yokohama-shi Totsuka-ku(0.00421%)
17 Sapporo-shi Kita-ku(0.00381%)
18 Niiza-shi(0.00371%)
19 Ichihara-shi(0.00362%)
20 Mitaka-shi(0.00343%)
21 Shibuya-ku(0.0034%)
22 Arakawa-ku(0.00324%)
23 Sano-shi(0.00319%)
24 Nagoya-shi Kita-ku(0.00302%)
25 Utsunomiya-shi(0.00298%)
26 Sakura-shi(0.0029%)
27 Toshima-ku(0.00264%)
28 Fuchuu-shi(0.00262%)
29 Atsugi-shi(0.00257%)
30 Hakodate-shi(0.0025%)
31 Kamakura-shi(0.00242%)
32 Sapporo-shi Nishi-ku(0.0024%)
33 Hiratsuka-shi(0.00193%)
34 Oota-ku(0.00187%)
35 Hitachi-shi(0.00185%)
36 Kita-ku(0.00173%)
37 Koutou-ku(0.00156%)
38 Kashiwa-shi(0.00147%)
39 Ichikawa-shi(0.00132%)
40 Toyonaka-shi(0.00131%)
41 Matsudo-shi(0.00116%)
42 Hachiouji-shi(0.00102%)
43 Funabashi-shi(0.000953%)
44 Adachi-ku(0.000917%)
45 Setagaya-ku(0.000814%)