Etymology and distribution of 上井.

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!

「上井」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 上井

Distribution of 上井
Ranking
1 Kagawa-ken(0.0149%)
2 Toyama-ken(0.0147%)
3 Ishikawa-ken(0.014%)
4 Mie-ken(0.0134%)
5 Kagoshima-ken(0.0124%)
6 Miyazaki-ken(0.0102%)
7 Nara-ken(0.00802%)
8 Tottori-ken(0.00727%)
9 Tokushima-ken(0.00702%)
10 Hokkaidou(0.00545%)
11 Oosaka-fu(0.00478%)
12 Gunma-ken(0.00345%)
13 Hyougo-ken(0.00337%)
14 Wakayama-ken(0.00274%)
15 Saitama-ken(0.00264%)
16 Gifu-ken(0.00264%)
17 Aichi-ken(0.00256%)
18 Fukui-ken(0.00239%)
19 Toukyou-to(0.00194%)
20 Kanagawa-ken(0.00178%)
21 Shiga-ken(0.00162%)
22 Kumamoto-ken(0.0016%)
23 Okayama-ken(0.00142%)
24 Fukuoka-ken(0.00138%)
25 Kyouto-fu(0.00133%)
26 Aomori-ken(0.00131%)
27 Nagano-ken(0.00115%)
28 Chiba-ken(0.00115%)
29 Akita-ken(0.000899%)
30 Shizuoka-ken(0.000888%)
31 Tochigi-ken(0.000887%)
32 Niigata-ken(0.000805%)
33 Yamaguchi-ken(0.000716%)
34 Shimane-ken(0.000463%)
35 Ibaraki-ken(0.000427%)
36 Hiroshima-ken(0.000288%)
37 Nagasaki-ken(0.000258%)
38 Ehime-ken(0.000246%)
39 Fukushima-ken(0.000201%)