Etymology and distribution of 龍.

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!

「龍」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 龍

Distribution of 龍
Ranking
1 Fukuoka-ken(0.0503%)
2 Saga-ken(0.0257%)
3 Kumamoto-ken(0.00684%)
4 Nagasaki-ken(0.00541%)
5 Kagoshima-ken(0.00447%)
6 Nara-ken(0.00178%)
7 Miyazaki-ken(0.0017%)
8 Ooita-ken(0.00161%)
9 Shizuoka-ken(0.00133%)
10 Kyouto-fu(0.00133%)
11 Chiba-ken(0.00132%)
12 Mie-ken(0.00131%)
13 Shiga-ken(0.0013%)
14 Oosaka-fu(0.00127%)
15 Toukyou-to(0.00104%)
16 Kanagawa-ken(0.00104%)
17 Ishikawa-ken(0.00102%)
18 Hiroshima-ken(0.00101%)
19 Hyougo-ken(0.000985%)
20 Yamaguchi-ken(0.000955%)
21 Shimane-ken(0.000926%)
22 Aichi-ken(0.000874%)
23 Nagano-ken(0.00082%)
24 Okayama-ken(0.000813%)
25 Okinawa-ken(0.000793%)
26 Kagawa-ken(0.000764%)
27 Ehime-ken(0.000738%)
28 Ibaraki-ken(0.000712%)
29 Wakayama-ken(0.000685%)
30 Saitama-ken(0.000661%)
31 Tottori-ken(0.000606%)
32 Gifu-ken(0.000566%)
33 Fukui-ken(0.000478%)
34 Hokkaidou(0.000209%)
35 Fukushima-ken(0.000201%)