Etymology and distribution of 溪中.

Taninaka 【溪中】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Aomori-ken , Hyougo-ken , Toyama-ken .

① Aomori-ken San'nohe-gun Gonohe-machi Originated in Kurashishi-shi city. In the Kamakura period the name of the place with a record with "Nakaichi" notation.

② Toyama-ken Toyama-shi originated from the city. A place name with a record since the Azuchi-Momoyama period. Ishikawa-ken Maki-shi (Nakano-nochi) in the center of Hakui-shi is the place name recorded in the Muromachi period.