Etymology and distribution of 藏.

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 藏.

カンマ区切りで複数の名字を指定できます。

Etymology of 藏

Distribution of 藏
Ranking
1 Oosaka-fu(About 10)
1 Ishikawa-ken(About 10)
3 Toyama-ken(About 10)
3 Aichi-ken(About 10)
3 Kanagawa-ken(About 10)
6 Hokkaidou(Very rare)
6 Saitama-ken(Very rare)
6 Tokushima-ken(Very rare)
6 Nagasaki-ken(Very rare)
6 Kouchi-ken(Very rare)
6 Kagoshima-ken(Very rare)