Etymology and distribution of 恒任.

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!

「恒任」さんの名字の分布比率。

カンマ区切りで複数の名字を指定できます。

Etymology of 恒任

Distribution of 恒任
Ranking
1 Kusu-gun Kusu-machi(0.133%)
2 Nakatsu-shi(0.0671%)
3 Kamo-gun Minamiizu-chou(0.0295%)
4 Yukuhashi-shi(0.0118%)
5 Beppu-shi(0.01%)
6 Koga-shi(0.00961%)
7 Shiki-shi(0.00823%)
8 Fukutsu-shi(0.00799%)
9 Kama-shi(0.00766%)
10 Owariasahi-shi(0.00598%)
11 Kokubunji-shi(0.00546%)
12 Hita-shi(0.00498%)
13 Niiza-shi(0.00371%)
14 Nagoya-shi Nishi-ku(0.00363%)
15 Tajimi-shi(0.00359%)
16 Kitakyuushuu-shi Yahatanishi-ku(0.00358%)
17 Komaki-shi(0.00343%)
18 Nagoya-shi Midori-ku(0.00254%)
19 Higashihiroshima-shi(0.00249%)
20 Kitakyuushuu-shi Kokuraminami-ku(0.00242%)
21 Ooita-shi(0.00206%)
22 Hachinohe-shi(0.00166%)
23 Toyota-shi(0.00121%)
24 Matsudo-shi(0.00116%)
25 Oota-ku(0.000936%)
26 Nagasaki-shi(0.000851%)
27 Kagoshima-shi(0.000752%)