Etymology and distribution of 亀.

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
↑オフライン検索できるアプリもどうぞ
在日通名大全

日本初、在日通名の研究書「在日通名大全」発売中!
ネットの電話帳 住宅地図 マッポン!

「亀」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 亀

Distribution of 亀
Ranking
1 Wakayama-ken(About 80)
2 Shizuoka-ken(About 50)
3 Toukyou-to(About 50)
4 Ishikawa-ken(About 40)
5 Kanagawa-ken(About 30)
5 Miyagi-ken(About 30)
5 Hokkaidou(About 30)
8 Oosaka-fu(About 20)
8 Kyouto-fu(About 20)
10 Iwate-ken(About 10)
10 Chiba-ken(About 10)
12 Saitama-ken(About 10)
13 Kagoshima-ken(Very rare)
13 Nagano-ken(Very rare)
13 Fukuoka-ken(Very rare)
13 Kumamoto-ken(Very rare)
13 Shiga-ken(Very rare)
13 Niigata-ken(Very rare)
13 Aichi-ken(Very rare)
13 Okayama-ken(Very rare)
13 Nara-ken(Very rare)
13 Hyougo-ken(Very rare)