Etymology and distribution of 井洞.

The Japanese surnames etymology dictionary.
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井洞さんの分布

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2 1　Hokkaidou(About 10)
PopulationAbout 10
RankingOut of ranking
Rank by city
1　Sapporo-shi Nishi-ku(Very rare)
1　Obihiro-shi(Very rare)
1　Wakkanai-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　Hokkaidou(0.000209%)
Rank by city
1　Wakkanai-shi(0.00797%)
2　Sapporo-shi Nishi-ku(0.0024%)
3　Obihiro-shi(0.00218%)
Rank by subregion

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