Etymology and distribution of 川沼.

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!

「川沼」さんの名字の分布数。

カンマ区切りで複数の名字を指定できます。

Etymology of 川沼

Distribution of 川沼
Ranking
1 Jousou-shi(About 20)
2 Sanjou-shi(About 20)
3 Fukushima-shi(About 10)
4 Matsudo-shi(About 10)
4 Utsunomiya-shi(About 10)
4 Shimotsuma-shi(About 10)
7 Koube-shi Chuuou-ku(Very rare)
7 Chiba-shi Hanamigawa-ku(Very rare)
7 Abiko-shi(Very rare)
7 Kisaradzu-shi(Very rare)
7 Funabashi-shi(Very rare)
7 Saitama-shi Kita-ku(Very rare)
7 Saitama-shi Urawa-ku(Very rare)
7 Kawaguchi-shi(Very rare)
7 Higashioosaka-shi(Very rare)
7 Tsubame-shi(Very rare)
7 Uonuma-shi(Very rare)
7 Nihonmatsu-shi(Very rare)
7 Toride-shi(Very rare)
7 Omitama-shi(Very rare)