Etymology and distribution of 是国.

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
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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!
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是国さんの分布

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 Yamaguchi-ken(About 30)
2 Hiroshima-ken(About 20)
3 Ishikawa-ken(About 10)
3 Tochigi-ken(About 10)
3 Okayama-ken(About 10)
3 Toyama-ken(About 10)
7 Fukushima-ken(Very rare)
7 Aichi-ken(Very rare)
7 Kyouto-fu(Very rare)
PopulationAbout 100
Ranking30,266
Rank by city
1 Yamaguchi-shi(About 20)
2 Utsunomiya-shi(About 10)
2 Aki-gun Fuchuu-chou(About 10)
2 Toyama-shi(About 10)
2 Kumage-gun Tabuse-chou(About 10)
6 Suzu-shi(Very rare)
6 Fukushima-shi(Very rare)
6 Sera-gun Sera-chou(Very rare)
6 Kyouto-shi Nishikyou-ku(Very rare)
6 Iwakuni-shi(Very rare)
Rank by subregion
1 富山県 富山市 福島(About 10)
1 山口県 山口市 平井(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 Yamaguchi-ken(0.00191%)
2 Hiroshima-ken(0.000721%)
3 Toyama-ken(0.000685%)
4 Ishikawa-ken(0.000683%)
5 Tochigi-ken(0.000444%)
6 Okayama-ken(0.000407%)
7 Fukushima-ken(0.000201%)
8 Kyouto-fu(0.000166%)
9 Aichi-ken(Very rare)
Rank by city
1 Kumage-gun Tabuse-chou(0.04%)
2 Kumage-gun Hirao-chou(0.024%)
3 Aki-gun Fuchuu-chou(0.0189%)
4 Sera-gun Sera-chou(0.0152%)
5 Suzu-shi(0.0146%)
6 Mimasaka-shi(0.00899%)
7 Akaiwa-shi(0.0087%)
8 Yamaguchi-shi(0.00819%)
9 Hatsukaichi-shi(0.00424%)
10 Kyouto-shi Nishikyou-ku(0.0033%)
Rank by subregion

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