Etymology and distribution of 井古.

Igo 【井古】^{レベル2
About 20}  The Japanese surnames etymology dictionary.

Shizuoka-ken , Oosaka-fu , Kumamoto-ken .

① Topography . From the island and the entrance. Kumamoto-ken Amakusa-shi It is based in Ushibo Town. The land faces the East China Sea. Saga-ken Karatsu-shi Yobuko cho is based in Yoko. The land faces the Sea of Japan.

② Hyougo-ken Sumoto-shi Originated from Io- no-mouth of a small character in the mouth.

③ Kagoshima-ken Tarumizu-shi Originated from Ichigeihei, a small figure of Nikawa.

Iko 【井古】^{レベル2
About 20}  The Japanese surnames etymology dictionary.

Oosaka-fu , Toukyou-to , Hyougo-ken . There is 五十川 surname. Hyougo-ken Tatsuno-shi Tatsuno - cho Kamisaki castle was a clan clerk of the clan, and Gunma-ken Maebashi-shi Otemachi was in the Edo period in the clan of Maebashi of the clan office.