Etymology and distribution of 堅岡.

The Japanese surnames etymology dictionary.
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Popuration of 堅岡.

カンマ区切りで複数の名字を指定できます。

Etymology of 堅岡

Distribution of 堅岡
Ranking
1 Miyagi-ken(About 40)
2 Toukyou-to(About 20)
3 Saitama-ken(About 10)
4 Hyougo-ken(Very rare)
4 Oosaka-fu(Very rare)
4 Toyama-ken(Very rare)
4 Kagoshima-ken(Very rare)