Etymology and distribution of 鴨沢.

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!

「鴨沢」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 鴨沢

Distribution of 鴨沢
Ranking
1 Abashirishi-chou Kun'neppu-chou(0.0563%)
2 Hanamaki-shi(0.0558%)
3 Shibetsu-shi(0.0248%)
4 Hachinohe-shi(0.0199%)
5 Chiyoda-ku(0.0154%)
6 Shiwa-gun Shiwa-chou(0.0135%)
7 Eniwa-shi(0.013%)
8 Kamo-shi(0.0121%)
9 Yokohama-shi Nishi-ku(0.00684%)
10 Sapporo-shi Chuuou-ku(0.00603%)
11 Mutsu-shi(0.00534%)
12 Minamisouma-shi(0.00528%)
13 Sendai-shi Miyagino-ku(0.00344%)
14 Koutou-ku(0.00312%)
15 Suginami-ku(0.00266%)
16 Yokohama-shi Hodogaya-ku(0.00257%)
17 Aomori-shi(0.00254%)
18 Kamakura-shi(0.00242%)
19 Sendai-shi Aoba-ku(0.00213%)
20 Sapporo-shi Higashi-ku(0.00206%)
21 Saga-shi(0.00188%)
22 Hitachi-shi(0.00185%)
23 Morioka-shi(0.00158%)
24 Nagaoka-shi(0.00141%)
25 Takatsuki-shi(0.00132%)
26 Iwaki-shi(0.00115%)
27 Nerima-ku(0.00105%)
28 Adachi-ku(0.000917%)
29 Matsuyama-shi(0.000869%)
30 Nagasaki-shi(0.000851%)