Etymology and distribution of 岡.

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」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

Distribution of 岡
Ranking
1 Oosaka-fu(About 9,300)
2 Hyougo-ken(About 7,200)
3 Okayama-ken(About 6,900)
4 Toukyou-to(About 5,800)
5 Fukuoka-ken(About 5,300)
6 Mie-ken(About 4,100)
7 Kanagawa-ken(About 4,000)
8 Kagawa-ken(About 3,900)
9 Hiroshima-ken(About 3,900)
10 Hokkaidou(About 3,800)
11 Yamaguchi-ken(About 3,600)
12 Saitama-ken(About 3,300)
13 Wakayama-ken(About 3,200)
14 Shimane-ken(About 3,000)
15 Aichi-ken(About 2,800)
16 Tokushima-ken(About 2,400)
17 Kyouto-fu(About 2,300)
18 Chiba-ken(About 2,200)
19 Saga-ken(About 2,200)
20 Ehime-ken(About 2,200)
21 Tochigi-ken(About 2,200)
22 Nagasaki-ken(About 1,800)
23 Yamanashi-ken(About 1,800)
24 Shiga-ken(About 1,700)
25 Nara-ken(About 1,600)
26 Kouchi-ken(About 1,500)
27 Niigata-ken(About 1,400)
28 Kumamoto-ken(About 1,000)
29 Miyagi-ken(About 1,000)
30 Ibaraki-ken(About 900)
31 Shizuoka-ken(About 900)
32 Ooita-ken(About 900)
33 Gunma-ken(About 900)
34 Fukui-ken(About 700)
35 Fukushima-ken(About 600)
36 Tottori-ken(About 500)
37 Nagano-ken(About 500)
38 Ishikawa-ken(About 500)
39 Gifu-ken(About 400)
40 Kagoshima-ken(About 400)
41 Miyazaki-ken(About 300)
42 Toyama-ken(About 200)
43 Akita-ken(About 200)
44 Yamagata-ken(About 200)
45 Aomori-ken(About 130)
46 Iwate-ken(About 120)
47 Okinawa-ken(About 70)