Etymology and distribution of 平井.

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!

「平井」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 平井

Distribution of 平井
Ranking
1 Kagawa-ken(0.224%)
2 Toyama-ken(0.217%)
3 Okayama-ken(0.216%)
4 Kyouto-fu(0.21%)
5 Yamanashi-ken(0.201%)
6 Shiga-ken(0.19%)
7 Nara-ken(0.162%)
8 Tottori-ken(0.159%)
9 Oosaka-fu(0.148%)
10 Hyougo-ken(0.145%)
11 Kumamoto-ken(0.127%)
12 Fukui-ken(0.121%)
13 Shizuoka-ken(0.117%)
14 Kanagawa-ken(0.116%)
15 Tokushima-ken(0.115%)
16 Shimane-ken(0.111%)
17 Wakayama-ken(0.107%)
18 Gifu-ken(0.101%)
19 Toukyou-to(0.101%)
20 Mie-ken(0.1%)
21 Saitama-ken(0.0984%)
22 Gunma-ken(0.0983%)
23 Ehime-ken(0.0959%)
24 Fukuoka-ken(0.093%)
25 Hiroshima-ken(0.0795%)
26 Chiba-ken(0.0746%)
27 Aichi-ken(0.0691%)
28 Nagasaki-ken(0.0691%)
29 Niigata-ken(0.0666%)
30 Hokkaidou(0.0658%)
31 Saga-ken(0.0656%)
32 Yamaguchi-ken(0.0623%)
33 Ooita-ken(0.0621%)
34 Ishikawa-ken(0.0594%)
35 Tochigi-ken(0.0592%)
36 Kouchi-ken(0.0555%)
37 Miyagi-ken(0.0542%)
38 Nagano-ken(0.0493%)
39 Ibaraki-ken(0.0493%)
40 Aomori-ken(0.0453%)
41 Fukushima-ken(0.0371%)
42 Iwate-ken(0.0274%)
43 Kagoshima-ken(0.0254%)
44 Yamagata-ken(0.0171%)
45 Miyazaki-ken(0.0126%)
46 Okinawa-ken(0.00951%)
47 Akita-ken(0.00839%)