Etymology and distribution of 井次.

Itsugu 【井次】^{レベル2
About 10}  The Japanese surnames etymology dictionary.

Gunma-ken , Ibaraki-ken . Summary . Synthesis of Mr. Izaka of Ibaraki-ken (formerly Hitachi country) and Mr. Hayasaka of Fukushima-ken western part (formerly Iwaki Nation). It is Isakaka at Hokkaidou . Good neighbor . Gunma-ken Tomioka-shi It is distributed in Ichinomiya. Good neighbor . Nagano-ken Minamisaku-gun Sakuho-machi There was a case in Takano cho as pronounced as Isasaka at Meiji New surname. 伊坂 Isaka reference. 早坂 Hayasaka reference.