Etymology and distribution of 吐山.

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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Ratio of 吐山.

カンマ区切りで複数の名字を指定できます。

Etymology of 吐山

Distribution of 吐山
Ranking
1 Nara-ken(0.00267%)
2 Tokushima-ken(0.000468%)
3 Kagawa-ken(0.000382%)
4 Gifu-ken(0.000377%)
5 Kyouto-fu(0.000333%)
6 Oosaka-fu(0.000288%)
7 Okayama-ken(0.000203%)
8 Hyougo-ken(Very rare)
9 Hokkaidou(Very rare)
10 Toukyou-to(Very rare)