Etymology and distribution of 中井澤.

Nakaizawa 【中井澤】^{レベル2
About 10}  The Japanese surnames etymology dictionary.

Hiroshima-ken , Oosaka-fu , Hyougo-ken .

① There is a 平 surname. 平 Taira reference.

② Nagano-ken Born in Hiraya village, Shimoina-gun. A place name with a record in the notation of "Hiraori" in the Warring States Period. The place name was also written as "flat store".