Etymology and distribution of 安井.

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!

「安井」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 安井

Distribution of 安井
Ranking
1 Aichi-ken(0.158%)
2 Shimane-ken(0.144%)
3 Kyouto-fu(0.142%)
4 Okayama-ken(0.128%)
5 Nara-ken(0.125%)
6 Shiga-ken(0.122%)
7 Oosaka-fu(0.0862%)
8 Hyougo-ken(0.0823%)
9 Kouchi-ken(0.0633%)
10 Toyama-ken(0.0616%)
11 Wakayama-ken(0.0548%)
12 Ishikawa-ken(0.0526%)
13 Tottori-ken(0.0521%)
14 Fukui-ken(0.0497%)
15 Akita-ken(0.0474%)
16 Gifu-ken(0.0443%)
17 Miyazaki-ken(0.0434%)
18 Mie-ken(0.0423%)
19 Hiroshima-ken(0.0401%)
20 Hokkaidou(0.0361%)
21 Chiba-ken(0.035%)
22 Toukyou-to(0.0332%)
23 Ehime-ken(0.0317%)
24 Kagawa-ken(0.0306%)
25 Yamaguchi-ken(0.0301%)
26 Kanagawa-ken(0.0274%)
27 Shizuoka-ken(0.0244%)
28 Tokushima-ken(0.0215%)
29 Saitama-ken(0.0189%)
30 Niigata-ken(0.0145%)
31 Ooita-ken(0.0142%)
32 Fukuoka-ken(0.013%)
33 Gunma-ken(0.0118%)
34 Tochigi-ken(0.0118%)
35 Ibaraki-ken(0.0108%)
36 Nagasaki-ken(0.0103%)
37 Aomori-ken(0.0102%)
38 Kumamoto-ken(0.00981%)
39 Nagano-ken(0.00852%)
40 Fukushima-ken(0.00643%)
41 Miyagi-ken(0.00604%)
42 Okinawa-ken(0.00555%)
43 Saga-ken(0.00493%)
44 Kagoshima-ken(0.00488%)
45 Yamagata-ken(0.00467%)
46 Yamanashi-ken(0.00464%)
47 Iwate-ken(0.00171%)