Etymology and distribution of 銅屋.

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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Popuration of 銅屋.

カンマ区切りで複数の名字を指定できます。

Etymology of 銅屋

Distribution of 銅屋
Ranking
1 Hokkaidou(About 10)
1 Oosaka-fu(About 10)
3 Chiba-ken(Very rare)
3 Wakayama-ken(Very rare)
3 Toukyou-to(Very rare)
3 Kanagawa-ken(Very rare)