Etymology and distribution of 由井.

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!

「由井」さんの名字の分布数。

カンマ区切りで複数の名字を指定できます。

Etymology of 由井

Distribution of 由井
Ranking
1 Nagano-ken(About 1,300)
2 Toukyou-to(About 700)
3 Kanagawa-ken(About 600)
4 Yamanashi-ken(About 400)
5 Hyougo-ken(About 300)
6 Oosaka-fu(About 300)
7 Chiba-ken(About 300)
8 Saitama-ken(About 200)
9 Ehime-ken(About 200)
10 Shizuoka-ken(About 200)
11 Aichi-ken(About 140)
12 Toyama-ken(About 130)
13 Hokkaidou(About 120)
14 Fukushima-ken(About 110)
15 Kouchi-ken(About 90)
16 Hiroshima-ken(About 80)
16 Wakayama-ken(About 80)
18 Ishikawa-ken(About 70)
18 Niigata-ken(About 70)
20 Kyouto-fu(About 70)
21 Okayama-ken(About 60)
22 Gunma-ken(About 50)
23 Nara-ken(About 50)
23 Mie-ken(About 50)
25 Fukuoka-ken(About 40)
26 Tottori-ken(About 30)
26 Yamaguchi-ken(About 30)
28 Ibaraki-ken(About 30)
28 Shiga-ken(About 30)
28 Gifu-ken(About 30)
31 Tokushima-ken(About 30)
32 Miyagi-ken(About 20)
33 Kumamoto-ken(About 20)
33 Iwate-ken(About 20)
33 Yamagata-ken(About 20)
36 Kagawa-ken(About 10)
36 Tochigi-ken(About 10)
38 Fukui-ken(About 10)
38 Miyazaki-ken(About 10)
38 Ooita-ken(About 10)
41 Kagoshima-ken(Very rare)
41 Nagasaki-ken(Very rare)
41 Akita-ken(Very rare)
41 Okinawa-ken(Very rare)
41 Shimane-ken(Very rare)