Etymology and distribution of 居川.

Ikawa 【居川】^{レベル4
About 1,000}  The Japanese surnames etymology dictionary.

Niigata-ken Minamiuonuma-shi , Toukyou-to , Saitama-ken . 諫早 's variant.

Igawa 【居川】^{レベル4
About 1,000}  The Japanese surnames etymology dictionary.

Fukushima-ken Tamura-shi . Fukushima-ken Tamura-shi Meiji New surname by monk of Buddhist monastery in Soto sect in Funateo town.

Orikawa 【居川】^{レベル4
About 1,000}  The Japanese surnames etymology dictionary.

Kouchi-ken , Chiba-ken , Oosaka-fu .

① Kouchi-ken Takaoka-gun Ochi-chou Beginning with Kataoka. A place name with a record since the Azuchi-Momoyama period. There are stories that the name of the place is according to the residence of Mr. Kataoka who came from Gunma-ken .

② Gunma-ken Takasaki-shi Originated in Kataoka Town. As the county name is a place name recorded in 711 (4 years in Wako).

③ Ibaraki-ken Ishioka-shi Kamioka birth. A place name with a record since the Kamakura period.

④ Originated from Iwate-ken Oushuu-shi Esashi Minamicho neighborhood (formerly Kataoka). Place name with a record since the North / South morning era.

⑤ Nara-ken Kitakatsuragi-gun Kanmaki-chou Originated from the vicinity of Kataoka castle (old: Kataoka) that was in the mining district . Place name with a record since the Kofun period. The place name was also written as "Katakaoka", "Kaibaoka", "Shojokaoka".

⑥ Okayama-ken Okayama-shi Born of Higashi ku Higashikataoka and Nishikataoka. A place name with a record since the Heian period. It is distributed in the same place. Good neighbor . Hyougo-ken Tatsuno-shi There are distribution in Shingu-machi Senso .

⑦ Topography . From Oka on one side. Hiroshima-ken Kure-shi 's Yoshiura, Tokushima-ken Mima-gun Tsurugi-chou Sadako Kira tells Meiji Shinnami that it is Meiji new family name .

※ Shiga-ken Kusatsu-shi Kataoka cho is a place name with a record since the Edo period. The place name is estimated from the name of Mr. Kataoka.

※ Okayama-ken Takahashi-shi Kase Town (formerly Kataoka) is a via point. A place name with a record since the Edo period. I will tell that the place name is from Mr. Kataoka in 1184 to 1185 (former calendar year).