Etymology and distribution of 和泉澤.

Izumisawa 【和泉澤】^{レベル3
About 200}  The Japanese surnames etymology dictionary.

Akita-ken . Birth of Iwate-ken Oushuu-shi Esashi Hirose (formerly Ichinoseki). A place name with a record since the Warring States Period. The place name was also written as "Ichinoseki".

※ Iwate-ken Ichinoseki-shi is a place name with a record since the Sengoku period. The place name was also written as "Ichinoseki" and "Ichinoseki".

Izumizawa 【和泉澤】^{レベル3
About 200}  The Japanese surnames etymology dictionary.

Niigata-ken Minamiuonuma-shi , Saitama-ken . Terrain . 一ノ谷 's variant. Niigata-ken Minamiuonuma-shi is based in Nagasaki.