Etymology and distribution of 城倉.

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 城倉.

カンマ区切りで複数の名字を指定できます。

Etymology of 城倉

Distribution of 城倉
Ranking
1 Nagano-ken(About 500)
2 Toukyou-to(About 100)
2 Kanagawa-ken(About 100)
4 Chiba-ken(About 60)
5 Saitama-ken(About 40)
6 Kyouto-fu(About 20)
6 Niigata-ken(About 20)
8 Aichi-ken(About 20)
8 Ibaraki-ken(About 20)
10 Mie-ken(About 10)
10 Hyougo-ken(About 10)
10 Tochigi-ken(About 10)
10 Fukuoka-ken(About 10)
10 Shizuoka-ken(About 10)
10 Kagoshima-ken(About 10)
16 Hokkaidou(Very rare)
16 Ooita-ken(Very rare)
16 Oosaka-fu(Very rare)
16 Miyazaki-ken(Very rare)
16 Toyama-ken(Very rare)
16 Yamanashi-ken(Very rare)
16 Okinawa-ken(Very rare)