Etymology and distribution of 孫工.

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!

孫工さんの分布

Population

Distributions by prefecture
都道府県分布数図
Distributions by city
市区町村分布数図
Distributions by subregion
小地域分布数図
Whole Japan Prefectures
レベル3 1 Shiga-ken(About 40)
2 Kanagawa-ken(About 10)
2 Kyouto-fu(About 10)
4 Gifu-ken(Very rare)
4 Miyazaki-ken(Very rare)
4 Nara-ken(Very rare)
4 Saitama-ken(Very rare)
4 Hyougo-ken(Very rare)
PopulationAbout 80
Ranking35,100
Rank by city
1 Hikone-shi(About 30)
2 Moriyama-shi(Very rare)
2 Uji-shi(Very rare)
2 Kyouto-shi Shimogyou-ku(Very rare)
2 Fujisawa-shi(Very rare)
2 Kamakura-shi(Very rare)
2 Yasu-shi(Very rare)
2 Oogaki-shi(Very rare)
2 Miyakonojou-shi(Very rare)
2 Tenri-shi(Very rare)
Rank by subregion
1 滋賀県 彦根市 笹尾町(About 10)

Distributions of ratios

Distributions of ratios by prefecture
都道府県分布比率図
Distributions of ratios by city
市区町村分布比率図
Distributions of ratios by subregion
小地域分布比率図
Whole Japan Prefectures
RatiosVery rare 1 Shiga-ken(0.00292%)
2 Miyazaki-ken(0.000339%)
3 Kyouto-fu(0.000333%)
4 Nara-ken(0.000297%)
5 Gifu-ken(0.000189%)
6 Kanagawa-ken(0.000123%)
7 Hyougo-ken(Very rare)
8 Saitama-ken(Very rare)
Rank by city
1 Hikone-shi(0.0279%)
2 Yasu-shi(0.00927%)
3 Tenri-shi(0.00705%)
4 Moriyama-shi(0.00702%)
5 Saitama-shi Nishi-ku(0.00597%)
6 Kyouto-shi Shimogyou-ku(0.00582%)
7 Oogaki-shi(0.00262%)
8 Kamakura-shi(0.00242%)
9 Uji-shi(0.00235%)
10 Miyakonojou-shi(0.00215%)
Rank by subregion

マッポン! で分布を見る