Etymology and distribution of 国貞.

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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「国貞」さんの名字の分布数。

カンマ区切りで複数の名字を指定できます。

Etymology of 国貞

Distribution of 国貞
Ranking
1 Ehime-ken(About 300)
2 Hiroshima-ken(About 300)
3 Oosaka-fu(About 200)
4 Yamaguchi-ken(About 200)
5 Okayama-ken(About 120)
6 Hyougo-ken(About 90)
7 Fukuoka-ken(About 40)
7 Tokushima-ken(About 40)
9 Kanagawa-ken(About 40)
9 Miyazaki-ken(About 40)
11 Saitama-ken(About 30)
12 Kouchi-ken(About 30)
13 Toukyou-to(About 30)
14 Tottori-ken(About 20)
14 Aichi-ken(About 20)
14 Chiba-ken(About 20)
17 Ibaraki-ken(About 20)
18 Nagasaki-ken(About 10)
18 Shiga-ken(About 10)
18 Hokkaidou(About 10)
21 Kagawa-ken(About 10)
21 Nagano-ken(About 10)
21 Kumamoto-ken(About 10)
21 Nara-ken(About 10)
21 Wakayama-ken(About 10)
21 Kyouto-fu(About 10)
27 Kagoshima-ken(Very rare)
27 Shizuoka-ken(Very rare)
27 Tochigi-ken(Very rare)
27 Gifu-ken(Very rare)
27 Ooita-ken(Very rare)
27 Mie-ken(Very rare)