Etymology and distribution of 上徳.

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 上徳.

カンマ区切りで複数の名字を指定できます。

Etymology of 上徳

Distribution of 上徳
Ranking
1 Miyazaki-ken(About 40)
2 Hokkaidou(About 10)
3 Oosaka-fu(About 10)
3 Hiroshima-ken(About 10)
3 Tokushima-ken(About 10)
3 Kanagawa-ken(About 10)
7 Kyouto-fu(Very rare)
7 Hyougo-ken(Very rare)
7 Shimane-ken(Very rare)
7 Aichi-ken(Very rare)
7 Shiga-ken(Very rare)
7 Fukuoka-ken(Very rare)