Etymology and distribution of 色井.

Iroi 【色井】^{レベル2
About 30}  The Japanese surnames etymology dictionary.

Nagano-ken .

① Nagano-ken Suwa-shi Takashima was in the Edo period in the Suwa clan in the Clan Office.

② Topography . In Shimane-ken Hamada-shi tell her that she disliked the cow's saucer's sauce and turned it into a mountain and renamed it. Estimated in around the Warring States Period. It is unknown whether beef wood exists. Originated from the large mouth of Kagoshima-ken Isa-shi (old: cattle hut). A place name with a record since the Kamakura period. In the Muromachi Period, the place name was called "Ushiyamonin".

Shikii 【色井】^{レベル2
About 30}  The Japanese surnames etymology dictionary.

Aichi-ken .

① Mie-ken Toba-shi birthplace of Chiga-cho. A place name with a record since the Edo period.

② Miyagi-ken Originated from the Shiogama Bay of Shiogama-shi (aka: Chigaura (Tiganoura)). Last name is Chiga.

※ Ainu series . Originated from Senga (Chiga) of Kokkoko, Sakhalin State, Russian Federation (formerly known as the Sakhalin Agriculture Agency). Last name is Chiga.