Etymology and distribution of 久原.

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!

「久原」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 久原

Distribution of 久原
Ranking
1 Saga-ken(0.0849%)
2 Nagasaki-ken(0.0417%)
3 Fukuoka-ken(0.0176%)
4 Ooita-ken(0.0158%)
5 Yamaguchi-ken(0.0158%)
6 Kouchi-ken(0.0125%)
7 Tokushima-ken(0.0117%)
8 Wakayama-ken(0.00924%)
9 Kumamoto-ken(0.00753%)
10 Oosaka-fu(0.00564%)
11 Hyougo-ken(0.00427%)
12 Kagoshima-ken(0.00407%)
13 Ehime-ken(0.0027%)
14 Hiroshima-ken(0.00245%)
15 Mie-ken(0.00241%)
16 Kanagawa-ken(0.00239%)
17 Okinawa-ken(0.00238%)
18 Kagawa-ken(0.00229%)
19 Toukyou-to(0.00224%)
20 Nara-ken(0.00208%)
21 Hokkaidou(0.00202%)
22 Kyouto-fu(0.002%)
23 Shiga-ken(0.00195%)
24 Aichi-ken(0.00168%)
25 Chiba-ken(0.0015%)
26 Tottori-ken(0.00121%)
27 Gifu-ken(0.00113%)
28 Saitama-ken(0.000955%)
29 Shimane-ken(0.000926%)
30 Tochigi-ken(0.000887%)
31 Nagano-ken(0.00082%)
32 Okayama-ken(0.000813%)
33 Yamagata-ken(0.000622%)
34 Niigata-ken(0.000483%)
35 Ibaraki-ken(0.000427%)
36 Gunma-ken(0.000405%)
37 Miyazaki-ken(0.000339%)
38 Shizuoka-ken(0.000333%)
39 Iwate-ken(0.000286%)
40 Aomori-ken(0.000262%)