Etymology and distribution of 留岡.

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!

「留岡」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 留岡

Distribution of 留岡
Ranking
1 Takasago-shi(About 30)
1 Shibushi-shi(About 30)
3 Soo-shi(About 20)
4 Kyouto-shi Fushimi-ku(About 10)
4 Amagasaki-shi(About 10)
4 Koube-shi Nada-ku(About 10)
4 Naka-gun Naka-chou(About 10)
8 Kyouto-shi Minami-ku(Very rare)
8 Itami-shi(Very rare)
8 Himeji-shi(Very rare)
8 Takaradzuka-shi(Very rare)
8 Kawanishi-shi(Very rare)
8 Koube-shi Kita-ku(Very rare)
8 Koube-shi Nishi-ku(Very rare)
8 Abiko-shi(Very rare)
8 Matsudo-shi(Very rare)
8 Saitama-shi Kita-ku(Very rare)
8 Ageo-shi(Very rare)
8 Sendai-shi Aoba-ku(Very rare)
8 Toyama-shi(Very rare)
8 Oogaki-shi(Very rare)
8 Wake-gun Wake-chou(Very rare)
8 Hiroshima-shi Minami-ku(Very rare)
8 Toyokawa-shi(Very rare)
8 Setagaya-ku(Very rare)
8 Suginami-ku(Very rare)
8 Choufu-shi(Very rare)
8 Toshima-ku(Very rare)
8 Yokohama-shi Totsuka-ku(Very rare)
8 Onga-gun Ashiya-machi(Very rare)
8 Mito-shi(Very rare)
8 Kouchi-shi(Very rare)
8 Aira-shi(Very rare)
8 Kirishima-shi(Very rare)
8 Kagoshima-shi(Very rare)