Etymology and distribution of 中分.

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 中分.

カンマ区切りで複数の名字を指定できます。

Etymology of 中分

Distribution of 中分
Ranking
1 Myouzai-gun Kamiyama-chou(0.0372%)
2 Komae-shi(0.0146%)
3 Mihara-shi(0.0132%)
4 Oosaka-shi Suminoe-ku(0.0128%)
5 Komatsushima-shi(0.00886%)
6 Oosaka-shi Minato-ku(0.00609%)
7 Anan-shi(0.00472%)
8 Oosaka-shi Higashiyodogawa-ku(0.00351%)
9 Tokushima-shi(0.00167%)
10 Edogawa-ku(0.00105%)
11 Sakai-shi(0.000572%)