Etymology and distribution of 長門.

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!

「長門」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 長門

Distribution of 長門
Ranking
1 Akita-ken(About 400)
2 Hokkaidou(About 400)
3 Hiroshima-ken(About 300)
4 Chiba-ken(About 300)
5 Okayama-ken(About 300)
6 Nagano-ken(About 200)
7 Toukyou-to(About 200)
8 Oosaka-fu(About 200)
9 Kanagawa-ken(About 150)
10 Nagasaki-ken(About 130)
11 Fukuoka-ken(About 130)
11 Ooita-ken(About 130)
13 Saitama-ken(About 100)
14 Gunma-ken(About 70)
15 Kagawa-ken(About 70)
15 Aichi-ken(About 70)
15 Miyagi-ken(About 70)
15 Hyougo-ken(About 70)
19 Tottori-ken(About 60)
20 Kyouto-fu(About 60)
21 Shizuoka-ken(About 50)
21 Ishikawa-ken(About 50)
23 Tochigi-ken(About 50)
23 Iwate-ken(About 50)
25 Ibaraki-ken(About 40)
25 Kumamoto-ken(About 40)
27 Yamaguchi-ken(About 30)
27 Mie-ken(About 30)
29 Shiga-ken(About 30)
29 Nara-ken(About 30)
31 Kouchi-ken(About 30)
31 Shimane-ken(About 30)
33 Fukui-ken(About 20)
34 Tokushima-ken(About 20)
34 Yamagata-ken(About 20)
36 Fukushima-ken(About 10)
36 Okinawa-ken(About 10)
36 Ehime-ken(About 10)
39 Aomori-ken(About 10)
39 Yamanashi-ken(About 10)
39 Wakayama-ken(About 10)
39 Saga-ken(About 10)
43 Kagoshima-ken(Very rare)
43 Niigata-ken(Very rare)
43 Gifu-ken(Very rare)
43 Toyama-ken(Very rare)
43 Miyazaki-ken(Very rare)