Etymology and distribution of 谷坂.

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!

「谷坂」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 谷坂

Distribution of 谷坂
Ranking
1 Aomori-ken(About 100)
2 Oosaka-fu(About 100)
3 Wakayama-ken(About 80)
4 Hokkaidou(About 70)
5 Shizuoka-ken(About 70)
6 Hyougo-ken(About 60)
7 Nagasaki-ken(About 50)
8 Kanagawa-ken(About 30)
8 Aichi-ken(About 30)
10 Toukyou-to(About 30)
11 Nagano-ken(About 20)
11 Kumamoto-ken(About 20)
11 Nara-ken(About 20)
14 Tottori-ken(About 10)
14 Ehime-ken(About 10)
14 Hiroshima-ken(About 10)
14 Okayama-ken(About 10)
14 Yamaguchi-ken(About 10)
14 Saitama-ken(About 10)
14 Kyouto-fu(About 10)
21 Kouchi-ken(About 10)
21 Miyazaki-ken(About 10)
21 Mie-ken(About 10)
24 Gunma-ken(Very rare)
24 Gifu-ken(Very rare)
24 Miyagi-ken(Very rare)
24 Chiba-ken(Very rare)