Etymology and distribution of 宇川.

Ukawa 【宇川】^{レベル4
About 1,800}  The Japanese surnames etymology dictionary.

Saitama-ken , Toukyou-to , Mie-ken .

① Saitama-ken Saitama-shi Urawa-ku is a place name with a record since the Sengoku period. The place name was also written as "Urah". Saitama-ken Satte-shi It was in Edo era at Soto Shinda.

② Topography . Ehime-ken Minamiuwa-gun Ainan-chou Ehime-ken Uwajima-shi Marunouchi tells that Uwajima lord of the clan government named it in 1846 (Hiroshi 3 years) as if Purer is peaceful.

Ugawa 【宇川】^{レベル4
About 1,800}  The Japanese surnames etymology dictionary.

瓜生田 Uryuuda reference.