Etymology and distribution of 武士.

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

Ratio of 武士.

カンマ区切りで複数の名字を指定できます。

Etymology of 武士

Distribution of 武士
Ranking
1 Ibaraki-ken(0.00883%)
2 Gunma-ken(0.00608%)
3 Shizuoka-ken(0.00344%)
4 Nagano-ken(0.00279%)
5 Kanagawa-ken(0.00135%)
6 Toukyou-to(0.00114%)
7 Fukushima-ken(0.001%)
8 Chiba-ken(0.000794%)
9 Tochigi-ken(0.000665%)
10 Hyougo-ken(0.000657%)
11 Saitama-ken(0.000587%)
12 Hokkaidou(0.000489%)
13 Niigata-ken(0.000483%)
14 Miyagi-ken(0.000417%)
15 Aichi-ken(0.000336%)
16 Oosaka-fu(0.000115%)