Etymology and distribution of 生井沢.

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!

「生井沢」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 生井沢

Distribution of 生井沢
Ranking
1 Kashima-shi(About 200)
2 Hokota-shi(About 50)
3 Itako-shi(About 40)
4 Namegata-shi(About 30)
5 Ichikawa-shi(About 20)
6 Edogawa-ku(About 20)
6 Mito-shi(About 20)
8 Chiba-shi Hanamigawa-ku(About 10)
8 Funabashi-shi(About 10)
10 Ichihara-shi(About 10)
10 Setagaya-ku(About 10)
10 Taitou-ku(About 10)
10 Koutou-ku(About 10)
10 Tsuchiura-shi(About 10)
15 Koube-shi Hyougo-ku(Very rare)
15 Noboribetsu-shi(Very rare)
15 Inzai-shi(Very rare)
15 Tomisato-shi(Very rare)
15 Abiko-shi(Very rare)
15 Kashiwa-shi(Very rare)
15 Kamagaya-shi(Very rare)
15 Kitakatsushika-gun Matsubushi-machi(Very rare)
15 Kasukabe-shi(Very rare)
15 Izumiootsu-shi(Very rare)
15 Okayama-shi(Very rare)
15 Nagaoka-shi(Very rare)
15 Mitaka-shi(Very rare)
15 Oota-ku(Very rare)
15 Fuchuu-shi(Very rare)
15 Arakawa-ku(Very rare)
15 Katsushika-ku(Very rare)
15 Adachi-ku(Very rare)
15 Yamato-shi(Very rare)
15 Yokohama-shi Hodogaya-ku(Very rare)
15 Yokohama-shi Kounan-ku(Very rare)
15 Yokohama-shi Isogo-ku(Very rare)
15 Yokohama-shi Tsurumi-ku(Very rare)
15 Kamakura-shi(Very rare)
15 Kouza-gun Samukawa-machi(Very rare)
15 Hitachinaka-shi(Very rare)
15 Toride-shi(Very rare)
15 Ushiku-shi(Very rare)
15 Kamikita-gun Oirase-chou(Very rare)
15 Aira-shi(Very rare)