Etymology and distribution of 洪村.

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

Miyazaki-ken Miyazaki-shi , Fukui-ken Fukui-shi · Kanagawa-ken .

① There is 酒匂 surname.

② Fukui-ken Fukui-shi Originated from drinking water in Shinomoto-cho. Drinking water is said to have been developed by Shoinaga in the Heian era. Meiji New surname by monk of Kofukuji of Jodo Shinshu located in the same place. 左近 Sakon reference.