Etymology and distribution of 岡原.

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!

「岡原」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 岡原

Distribution of 岡原
Ranking
1 Hiroshima-ken(About 600)
2 Miyazaki-ken(About 400)
2 Oosaka-fu(About 400)
4 Hyougo-ken(About 300)
5 Yamaguchi-ken(About 300)
6 Ehime-ken(About 200)
7 Fukuoka-ken(About 200)
8 Kagawa-ken(About 200)
9 Okayama-ken(About 140)
10 Toukyou-to(About 130)
11 Kumamoto-ken(About 100)
12 Kouchi-ken(About 70)
12 Kyouto-fu(About 70)
14 Kanagawa-ken(About 60)
14 Saitama-ken(About 60)
14 Hokkaidou(About 60)
17 Shizuoka-ken(About 60)
18 Ooita-ken(About 50)
19 Chiba-ken(About 50)
20 Aichi-ken(About 40)
20 Nara-ken(About 40)
22 Shimane-ken(About 30)
23 Fukui-ken(About 30)
23 Wakayama-ken(About 30)
25 Shiga-ken(About 30)
25 Gifu-ken(About 30)
27 Ibaraki-ken(About 20)
28 Kagoshima-ken(About 20)
28 Tochigi-ken(About 20)
30 Nagasaki-ken(About 10)
30 Ishikawa-ken(About 10)
30 Okinawa-ken(About 10)
30 Mie-ken(About 10)
34 Saga-ken(About 10)
35 Tottori-ken(Very rare)
35 Nagano-ken(Very rare)
35 Akita-ken(Very rare)
35 Fukushima-ken(Very rare)
35 Tokushima-ken(Very rare)
35 Yamanashi-ken(Very rare)
35 Miyagi-ken(Very rare)