Etymology and distribution of 久楽.

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!

「久楽」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 久楽

Distribution of 久楽
Ranking
1 Shuunan-shi(0.0849%)
2 Shioya-gun Shioya-machi(0.0278%)
3 Kumage-gun Tabuse-chou(0.02%)
4 Houfu-shi(0.013%)
5 Oosaka-shi Chuuou-ku(0.0103%)
6 Kudamatsu-shi(0.00662%)
7 Ushiku-shi(0.00647%)
8 Oyama-shi(0.00637%)
9 Hikari-shi(0.0063%)
10 Hokuto-shi(0.00612%)
11 Oosaka-shi Nishiyodogawa-ku(0.00559%)
12 Ube-shi(0.0042%)
13 Yamaguchi-shi(0.0041%)
14 Hiroshima-shi Saeki-ku(0.00401%)
15 Kadoma-shi(0.0039%)
16 Fukuoka-shi Hakata-ku(0.00388%)
17 Suita-shi(0.0031%)
18 Hiroshima-shi Asakita-ku(0.00287%)
19 Toyonaka-shi(0.00263%)
20 Hiroshima-shi Asaminami-ku(0.00253%)
21 Iwakuni-shi(0.00232%)
22 Takaradzuka-shi(0.00224%)
23 Koube-shi Tarumi-ku(0.00207%)
24 Ibaraki-shi(0.002%)
25 Neyagawa-shi(0.00199%)
26 Kawagoe-shi(0.00155%)
27 Yokkaichi-shi(0.00149%)
28 Takatsuki-shi(0.00132%)
29 Nerima-ku(0.00105%)