Kagoshima-ken Amami-shi , Oosaka-fu . There is Oka in the surname of Kagoshima-ken 's Amami archipelago. There is a word of "the first son". 岡 reference.
| Whole Japan | Prefectures | |
|---|---|---|
| レベル | 3 |
1 Okayama-ken(About 30) 2 Kagoshima-ken(About 20) 3 Kanagawa-ken(About 10) 3 Ishikawa-ken(About 10) 3 Oosaka-fu(About 10) 6 Fukui-ken(Very rare) 6 Toukyou-to(Very rare) 6 Aichi-ken(Very rare) 6 Hyougo-ken(Very rare) |
| Population | About 100 | |
| Ranking | 31,715 | |
| Rank by city |
|---|
|
1 Okayama-shi(About 30) 2 Amami-shi(About 10) 3 Yamato-shi(About 10) 3 Suzu-shi(About 10) 3 Ooshima-gun Tatsugou-chou(About 10) 6 Fukui-shi(Very rare) 6 Katano-shi(Very rare) 6 Meguro-ku(Very rare) 6 Toukai-shi(Very rare) 6 Takatsuki-shi(Very rare) |
| Rank by subregion |
|---|
|
1 岡山県 岡山市 杉谷(About 20) 2 鹿児島県 大島郡龍郷町 円(About 10) 2 石川県 珠洲市 若山町吉ケ池(About 10) |
Endou 【圓堂】レベル2
About 10 are variants.
