Etymology and distribution of 張簡.

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 張簡.

カンマ区切りで複数の名字を指定できます。

Etymology of 張簡

Distribution of 張簡
Ranking
1 Nasu-gun Nasu-machi(About 10)
2 Suita-shi(Very rare)
2 Koutou-ku(Very rare)
2 Minato-ku(Very rare)