Etymology and distribution of 洗川.

Araikawa 【洗川】^{レベル3
About 300}  The Japanese surnames etymology dictionary.

Okayama-ken , Hyougo-ken , Oosaka-fu .

① Okayama-ken Mimasaka-shi birth of Awaiaka. A place name with a record since the Nara period.

② Ehime-ken Matsuyama-shi Originated from the Awai Kawahara neighborhood (formerly Awai). A place name with a record since the Nara period.

③ Kagawa-ken Kan'onji-shi Origin of Awai-machi. A place name with a record since the Edo period.

Araigawa 【洗川】^{レベル3
About 300}  The Japanese surnames etymology dictionary.

Ehime-ken , Kouchi-ken · Yamaguchi-ken . 粟井 's variant. Tokushima-ken Naruto-shi Seta Machamudaura Awa Well Shrine located in Awa Island was renamed from Awai Shrine in 1645 (2 years old).