「Soraoka」(そらおか)さんの名字の由来、語源、分布。

Nagano-ken , Aomori-ken , Hokkaidou . Distribution including Tokita. At Nagano-ken , Tokiwa.

① Origin of Nagano-ken Ueda-shi Tsunoda (Tokita). A place name with a record since the Heian period.

② Topography . Always added "田" which is the surname of Amagi archipelago of Kagoshima-ken . Kagoshima-ken Ooshima-gun Kikai-chou There is a tradition in Sakane . Estimated at the time of returning to Japan in 1953. 常 Tsune reference.

2022年 7月 31日更新

Whole Japan		Prefectures
レベル	3	1　Yamaguchi-ken(About 30) 2　Oosaka-fu(About 20) 3　Hiroshima-ken(About 10) 3　Ooita-ken(About 10) 3　Chiba-ken(About 10) 6　Kouchi-ken(About 10) 6　Fukushima-ken(About 10) 6　Toukyou-to(About 10) 6　Ehime-ken(About 10) 6　Shimane-ken(About 10)
Population	About 200
Ranking	23,677

Rank by city
1　Beppu-shi(About 10) 2　Iishi-gun Iinan-chou(About 10) 2　Yawatahama-shi(About 10) 2　Shimonoseki-shi(About 10) 2　Takaoka-gun Yusuhara-chou(About 10) 2　Nagato-shi(About 10) 2　Ikeda-shi(About 10) 2　Koube-shi Nada-ku(About 10) 9　Iwaki-shi(Very rare) 9　Konan-shi(Very rare)

Rank by subregion
1　高知県高岡郡檮原町六丁(About 10) 1　大阪府池田市綾羽(About 10) 1　島根県飯石郡飯南町志津見(About 10)

Etymology and distribution of 空岡.