Etymology and distribution of 鄧.

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 鄧.

カンマ区切りで複数の名字を指定できます。

Etymology of 鄧

Distribution of 鄧
Ranking
1 Kanagawa-ken(About 30)
2 Toukyou-to(About 20)
3 Hyougo-ken(About 20)
4 Saitama-ken(About 10)
5 Niigata-ken(About 10)
6 Kyouto-fu(Very rare)
6 Ooita-ken(Very rare)
6 Okayama-ken(Very rare)
6 Aichi-ken(Very rare)