Etymology and distribution of 冨沢.

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!

「冨沢」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 冨沢

Distribution of 冨沢
Ranking
1 Gunma-ken(0.0197%)
2 Nagano-ken(0.0148%)
3 Iwate-ken(0.0103%)
4 Yamagata-ken(0.00996%)
5 Niigata-ken(0.00628%)
6 Fukui-ken(0.00621%)
7 Ishikawa-ken(0.00581%)
8 Toukyou-to(0.00527%)
9 Saitama-ken(0.00441%)
10 Chiba-ken(0.00423%)
11 Kanagawa-ken(0.00368%)
12 Miyagi-ken(0.00354%)
13 Toyama-ken(0.00274%)
14 Ibaraki-ken(0.00271%)
15 Akita-ken(0.0021%)
16 Fukushima-ken(0.00201%)
17 Shiga-ken(0.00195%)
18 Kyouto-fu(0.00183%)
19 Hyougo-ken(0.00156%)
20 Nara-ken(0.00148%)
21 Ooita-ken(0.00129%)
22 Oosaka-fu(0.00121%)
23 Tochigi-ken(0.00111%)
24 Tokushima-ken(0.000936%)
25 Shizuoka-ken(0.000777%)
26 Nagasaki-ken(0.000773%)
27 Kumamoto-ken(0.000684%)
28 Tottori-ken(0.000606%)
29 Hokkaidou(0.000559%)
30 Kagoshima-ken(0.000407%)
31 Okayama-ken(0.000407%)
32 Kagawa-ken(0.000382%)
33 Gifu-ken(0.000377%)
34 Wakayama-ken(0.000342%)
35 Miyazaki-ken(0.000339%)
36 Fukuoka-ken(0.000297%)
37 Aomori-ken(0.000262%)
38 Yamaguchi-ken(0.000239%)
39 Mie-ken(0.000219%)
40 Hiroshima-ken(0.000144%)
41 Aichi-ken(Very rare)