Etymology and distribution of Japanese surnames.

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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福島県 郡山市 田村町谷田川宮ノ下の名字

About 40 【力丸】5
About 10 【草野】6
About 10 【渡部】6
Very rare 【大野】7
Very rare 【熊田】6
Very rare 【酒井】7
Very rare 【相楽】5
Very rare 【鈴木】7
Very rare 【田中】7
Very rare 【堂山】4
Very rare 【山田】7
Very rare 【渡辺】7