Etymology and distribution of 群司.

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!

群司さんの分布

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 Ibaraki-ken(About 20)
2 Fukushima-ken(About 10)
2 Saitama-ken(About 10)
4 Kanagawa-ken(Very rare)
4 Tokushima-ken(Very rare)
4 Miyazaki-ken(Very rare)
4 Chiba-ken(Very rare)
PopulationAbout 50
Ranking42,658
Rank by city
1 Adachi-gun Ootama-mura(Very rare)
1 Kooriyama-shi(Very rare)
1 Chigasaki-shi(Very rare)
1 Nobeoka-shi(Very rare)
1 Fujimi-shi(Very rare)
1 Fujimino-shi(Very rare)
1 Higashiibaraki-gun Ibaraki-machi(Very rare)
1 Ushiku-shi(Very rare)
1 Kashima-shi(Very rare)
1 Yotsukaidou-shi(Very rare)
Rank by subregion

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 Ibaraki-ken(0.00057%)
2 Tokushima-ken(0.000468%)
3 Fukushima-ken(0.000402%)
4 Miyazaki-ken(0.000339%)
5 Saitama-ken(0.000147%)
6 Chiba-ken(Very rare)
7 Kanagawa-ken(Very rare)
Rank by city
1 Adachi-gun Ootama-mura(0.0553%)
2 Kaifu-gun Kaiyou-chou(0.0236%)
3 Higashiibaraki-gun Ibaraki-machi(0.0113%)
4 Kashima-shi(0.00701%)
5 Ushiku-shi(0.00647%)
6 Yotsukaidou-shi(0.00583%)
7 Fujimi-shi(0.00533%)
8 Fujimino-shi(0.00509%)
9 Nobeoka-shi(0.00283%)
10 Hitachinaka-shi(0.0028%)
Rank by subregion

Notable cities

Adachi-gun Ootama-mura

マッポン! で分布を見る