Etymology and distribution of 沢下.

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!

「沢下」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 沢下

Distribution of 沢下
Ranking
1 Hyougo-ken(About 90)
2 Oosaka-fu(About 80)
3 Mie-ken(About 50)
4 Shizuoka-ken(About 40)
5 Iwate-ken(About 30)
6 Aomori-ken(About 30)
7 Gifu-ken(About 30)
8 Gunma-ken(About 20)
8 Toukyou-to(About 20)
10 Aichi-ken(About 10)
10 Saitama-ken(About 10)
10 Hokkaidou(About 10)
13 Nara-ken(About 10)
13 Chiba-ken(About 10)
15 Kanagawa-ken(Very rare)
15 Ishikawa-ken(Very rare)
15 Kumamoto-ken(Very rare)
15 Shiga-ken(Very rare)
15 Tochigi-ken(Very rare)
15 Tokushima-ken(Very rare)
15 Okayama-ken(Very rare)
15 Yamagata-ken(Very rare)
15 Kyouto-fu(Very rare)