Etymology and distribution of 石岡.

Ishioka 【石岡】^{レベル5
About 17,700}  The Japanese surnames etymology dictionary.

Tochigi-ken Sano-shi , Yamaguchi-ken , Saitama-ken . Tochigi-ken Ashikaga-shi Birth originated from the fishermen of Yobeto. A place name with a record since the Kamakura period. The name of the place was also written as "Iebea Department", "Wakobabe" and pronunciation of Iyobe. Yamaguchi-ken Hagi-shi Horiuchi was in the Edo period in the Choshu clan of the clan office.