「Oiwake」(おいわけ)さんの名字の由来、語源、分布。

① Saitama-ken Fukaya-shi brought up from Okabe. The name of the place called the "Okabe no hara" in the Heian era. Yamaguchi-ken Hagi-shi Horiuchi was in the Edo period in the Choshu clan of the clan office.

② Shizuoka-ken Fujieda-shi Originated in Okabe, Okabe-cho. A place name with a record since the Kamakura period. The place name was also written as "Okabe" and "Okabe". Chiba-ken Noda-shi Yamazaki is the lord of Shimosa Yamazaki of the Clan office Azuchi Momoyama period Edo era, Gifu-ken Oogaki-shi Guo Town is the clan lord of the Ogaki domain office, Kyouto-fu Kameoka-shi Araruka-cho Uchimaru is the clan office Tamba Kameyama Domain, Kyouto-fu Fukuchiyama-shi Inscription is the Fukuchiyama Lord of the Clan Agency, Oosaka-fu Takatsuki-shi Castle Town is the Takatsuki Lord of the Clan Office, Oosaka-fu Kishiwada-shi Kishirocho is the Kishiwada Lord of the Clan Agency, Hyougo -ken Tatsuno-shi Tatsuno -cho Kamisaki castle was in the Edo era in the domain of Tatsuno of the Clan Office.

③ Topography . Tokushima-ken Mima-gun Tsurugi-chou Sadako Noriko Tani · Nishiko Valley tells Meiji New surname by neighborhood of Oka.

2020年 4月 9日更新

Whole Japan		Prefectures
レベル	4	1　Toyama-ken(About 300) 2　Hokkaidou(About 100) 3　Toukyou-to(About 90) 4　Oosaka-fu(About 70) 5　Gifu-ken(About 60) 6　Nagano-ken(About 30) 7　Aichi-ken(About 30) 8　Kanagawa-ken(About 30) 8　Nara-ken(About 30) 10　Fukushima-ken(About 20)
Population	About 800
Ranking	9,228

Rank by city
1　Toyama-shi(About 120) 2　Shimoniikawa-gun Asahi-machi(About 80) 3　Hida-shi(About 40) 4　Takaoka-shi(About 30) 5　Fukushima-shi(About 20) 5　Himi-shi(About 20) 5　Moriguchi-shi(About 20) 5　Kitami-shi(About 20) 9　Takayama-shi(About 10) 9　Matsumoto-shi(About 10)

Rank by subregion
1　岐阜県飛騨市船津(About 40) 2　富山県下新川郡朝日町草野(About 30) 3　富山県下新川郡朝日町西草野(About 30) 4　大阪府守口市橋波西之町(About 20) 4　富山県富山市笹津４区(About 20) 4　富山県富山市笹津(About 20) 7　長野県諏訪郡下諏訪町桜町(About 10) 7　富山県高岡市伏木古国府(About 10) 9　北海道釧路市入舟(About 10) 9　北海道北見市常呂北進町(About 10)

Rank by subregion