Etymology and distribution of 井坂.

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!

「井坂」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 井坂

Distribution of 井坂
Ranking
1 Ibaraki-ken(0.177%)
2 Tokushima-ken(0.0328%)
3 Mie-ken(0.0206%)
4 Tottori-ken(0.0109%)
5 Oosaka-fu(0.01%)
6 Toukyou-to(0.00995%)
7 Chiba-ken(0.00962%)
8 Kanagawa-ken(0.00804%)
9 Saitama-ken(0.00749%)
10 Fukushima-ken(0.00602%)
11 Nara-ken(0.00594%)
12 Hiroshima-ken(0.00591%)
13 Gunma-ken(0.00588%)
14 Kagawa-ken(0.00573%)
15 Kumamoto-ken(0.00502%)
16 Aichi-ken(0.00471%)
17 Fukui-ken(0.0043%)
18 Hyougo-ken(0.00378%)
19 Miyagi-ken(0.00375%)
20 Tochigi-ken(0.00333%)
21 Hokkaidou(0.00328%)
22 Shizuoka-ken(0.00288%)
23 Niigata-ken(0.00274%)
24 Ishikawa-ken(0.00273%)
25 Gifu-ken(0.00226%)
26 Yamaguchi-ken(0.00215%)
27 Kagoshima-ken(0.00203%)
28 Nagasaki-ken(0.0018%)
29 Kouchi-ken(0.00172%)
30 Shiga-ken(0.00162%)
31 Kyouto-fu(0.0015%)
32 Yamanashi-ken(0.00127%)
33 Okayama-ken(0.00122%)
34 Fukuoka-ken(0.00109%)
35 Nagano-ken(0.000984%)
36 Shimane-ken(0.000926%)
37 Iwate-ken(0.000857%)
38 Okinawa-ken(0.000793%)
39 Ehime-ken(0.000738%)
40 Toyama-ken(0.000685%)
41 Wakayama-ken(0.000685%)
42 Miyazaki-ken(0.000679%)
43 Yamagata-ken(0.000311%)
44 Akita-ken(0.0003%)