Etymology and distribution of 揚.

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 揚.

カンマ区切りで複数の名字を指定できます。

Etymology of 揚

Distribution of 揚
Ranking
1 Hyougo-ken(About 40)
2 Toukyou-to(About 30)
3 Kanagawa-ken(About 30)
3 Kagawa-ken(About 30)
5 Oosaka-fu(About 20)
6 Mie-ken(Very rare)
6 Chiba-ken(Very rare)
6 Shimane-ken(Very rare)
6 Hiroshima-ken(Very rare)
6 Shizuoka-ken(Very rare)
6 Kouchi-ken(Very rare)