Etymology and distribution of 岩沙.

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!

「岩沙」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 岩沙

Distribution of 岩沙
Ranking
1 Naka-gun Naka-chou(0.0487%)
2 Hashima-gun Ginan-chou(0.0416%)
3 Agatsuma-gun Naganohara-machi(0.0372%)
4 Ichinomiya-shi(0.0209%)
5 Nisshin-shi(0.0146%)
6 Anan-shi(0.0141%)
7 Hashima-shi(0.013%)
8 Kounan-shi(0.00915%)
9 Chiryuu-shi(0.0075%)
10 Oobu-shi(0.00605%)
11 Shinjuku-ku(0.00468%)
12 Nagoya-shi Mizuho-ku(0.00466%)
13 Nagoya-shi Meitou-ku(0.00404%)
14 Nagoya-shi Tenpaku-ku(0.00396%)
15 Nagoya-shi Minato-ku(0.00361%)
16 Nagoya-shi Moriyama-ku(0.00333%)
17 Kuwana-shi(0.00324%)
18 Seto-shi(0.00319%)
19 Oosaka-shi Hirano-ku(0.00273%)
20 Nagoya-shi Midori-ku(0.00254%)
21 Toyokawa-shi(0.00246%)
22 Kamakura-shi(0.00242%)
23 Koube-shi Nishi-ku(0.00242%)
24 Takaradzuka-shi(0.00224%)
25 Tokushima-shi(0.00167%)
26 Setagaya-ku(0.00163%)
27 Kashiwa-shi(0.00147%)
28 Matsudo-shi(0.00116%)
29 Higashioosaka-shi(0.000934%)