Etymology and distribution of 古島.

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!

「古島」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 古島

Distribution of 古島
Ranking
1 Kumamoto-ken(0.0185%)
2 Gunma-ken(0.00933%)
3 Niigata-ken(0.00676%)
4 Fukui-ken(0.00574%)
5 Kyouto-fu(0.00516%)
6 Saitama-ken(0.00514%)
7 Tochigi-ken(0.00466%)
8 Toyama-ken(0.00411%)
9 Ooita-ken(0.00354%)
10 Ehime-ken(0.00344%)
11 Shimane-ken(0.00324%)
12 Yamaguchi-ken(0.0031%)
13 Fukuoka-ken(0.00306%)
14 Toukyou-to(0.00299%)
15 Kanagawa-ken(0.0027%)
16 Shiga-ken(0.0026%)
17 Hyougo-ken(0.00254%)
18 Chiba-ken(0.00247%)
19 Hiroshima-ken(0.00245%)
20 Tokushima-ken(0.00234%)
21 Ibaraki-ken(0.00214%)
22 Gifu-ken(0.00207%)
23 Miyazaki-ken(0.00204%)
24 Hokkaidou(0.00202%)
25 Nagano-ken(0.00197%)
26 Tottori-ken(0.00182%)
27 Aichi-ken(0.00182%)
28 Ishikawa-ken(0.00171%)
29 Oosaka-fu(0.00161%)
30 Yamanashi-ken(0.00127%)
31 Shizuoka-ken(0.00111%)
32 Nagasaki-ken(0.00103%)
33 Saga-ken(0.000987%)
34 Kagoshima-ken(0.000814%)
35 Nara-ken(0.000594%)
36 Kouchi-ken(0.000431%)
37 Fukushima-ken(0.000402%)
38 Okinawa-ken(0.000396%)
39 Mie-ken(0.000219%)
40 Miyagi-ken(0.000208%)
41 Okayama-ken(0.000203%)