Etymology and distribution of 城井.

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!

「城井」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 城井

Distribution of 城井
Ranking
1 Ooita-ken(0.0196%)
2 Kagawa-ken(0.00573%)
3 Nara-ken(0.00475%)
4 Fukuoka-ken(0.00435%)
5 Yamaguchi-ken(0.00239%)
6 Hyougo-ken(0.00197%)
7 Kumamoto-ken(0.00183%)
8 Oosaka-fu(0.00179%)
9 Mie-ken(0.00153%)
10 Chiba-ken(0.00097%)
11 Toukyou-to(0.000945%)
12 Nagasaki-ken(0.000773%)
13 Hiroshima-ken(0.000721%)
14 Kanagawa-ken(0.000613%)
15 Okayama-ken(0.00061%)
16 Nagano-ken(0.000492%)
17 Ehime-ken(0.000492%)
18 Shizuoka-ken(0.000444%)
19 Yamanashi-ken(0.000422%)
20 Kagoshima-ken(0.000407%)
21 Gifu-ken(0.000377%)
22 Saitama-ken(0.000367%)
23 Miyazaki-ken(0.000339%)
24 Shiga-ken(0.000325%)
25 Yamagata-ken(0.000311%)
26 Akita-ken(0.0003%)
27 Ibaraki-ken(0.000285%)
28 Aichi-ken(0.000269%)
29 Kyouto-fu(0.000166%)
30 Hokkaidou(Very rare)