Etymology and distribution of 猪岡.

Inooka 【猪岡】^{レベル4
About 1,400}  The Japanese surnames etymology dictionary.

Fukui-ken Echizen-shi . 岩谷 's variant. 岩谷 Iwatani reference.

Ioka 【猪岡】^{レベル4
About 1,400}  The Japanese surnames etymology dictionary.

Toukyou-to , Kanagawa-ken , Saitama-ken .

① Mie-ken Yokkaichi-shi Origin of Izaka-cho. A place name with a record since the Warring States Period.

② Topography . 井坂 's variant. Akita-ken Akita-shi Chiaki Park was in the Edo period in the clan san Kubota of the Clan office. The same clan says that Ibaraki-ken is out.

* Originated from Ikako Township in the vicinity of Ibaraki-ken Ishioka-shi (formerly Shinjō gun). Period, location unknown.

③ Topography . "Saka" is added to Italy which is the surname of the Kamoshima-ken Amami archipelago. There was a case in Hyygo-ken Koube-shi where the name of renamed was changed between 1952 and 1959 on the ground that it is confusing to foreigners. 伊 I reference.

④ Korea type . Terrain . "Slope" is added to "I" including Yun. Oosaka-fu Oosaka-shi Minato-ku, Hiroshima-ken Mihara-shi has a record of naturalization on October 26, 1962. The real name is Yoon. 尹 In reference.

※ Saitama-ken Kuki-shi Izaka is a place name with a record since the Edo period.