Etymology and distribution of 久内.

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 久内.

カンマ区切りで複数の名字を指定できます。

Etymology of 久内

Distribution of 久内
Ranking
1 Hyougo-ken(0.00279%)
2 Kyouto-fu(0.00216%)
3 Yamanashi-ken(0.00211%)
4 Ishikawa-ken(0.00171%)
5 Nara-ken(0.00148%)
6 Okayama-ken(0.00102%)
7 Oosaka-fu(0.000691%)
8 Shiga-ken(0.000325%)
9 Kanagawa-ken(0.000245%)
10 Fukuoka-ken(0.000198%)
11 Hiroshima-ken(0.000144%)
12 Toukyou-to(Very rare)
13 Saitama-ken(Very rare)