Etymology and distribution of 恩沢.

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!

「恩沢」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 恩沢

Distribution of 恩沢
Ranking
1 Shimoina-gun Tenryuu-mura(About 30)
1 Saihaku-gun Nanbu-chou(About 30)
3 Toyota-shi(About 10)
4 Toyokawa-shi(About 10)
5 Koube-shi Tarumi-ku(Very rare)
5 Saitama-shi Sakura-ku(Very rare)
5 Toda-shi(Very rare)
5 Sakai-shi(Very rare)
5 Ama-shi(Very rare)
5 Kitashitara-gun Toyone-mura(Very rare)
5 Anjou-shi(Very rare)
5 Komaki-shi(Very rare)
5 Aisai-shi(Very rare)
5 Shinshiro-shi(Very rare)
5 Ama-gun Ooharu-chou(Very rare)
5 Chita-gun Agui-chou(Very rare)
5 Toyohashi-shi(Very rare)
5 Shimoina-gun Anan-chou(Very rare)
5 Iida-shi(Very rare)
5 Hamamatsu-shi(Very rare)