Etymology and distribution of 平地.

Hirachi 【平地】^{レベル4
About 1,200}  The Japanese surnames etymology dictionary.

Kagoshima-ken , Tokushima-ken , Hiroshima-ken .

① Topography . "Oka" was added to the guardian who is the surname of Amagi archipelago of Kagoshima-ken . Estimated at the time of returning to Japan in 1953. 保 Tamotsu reference.

② Topography . From Oka. "Keeping" is a favorable character. Tokushima-ken Mima-gun Tsurugi-chou Sayaka tells me in Meiji New Year in Hiroya. Okayama-ken Niimi-shi , Okayama-ken Takahashi-shi Shimane Prefecture Shimane-ken Hamada-shi Tatei - machi was in the Edo period in the Hamada Samurai of the Clan office.

Heichi 【平地】^{レベル4
About 1,200}  The Japanese surnames etymology dictionary.

Kagoshima-ken , Kumamoto-ken , Fukuoka-ken . Thing . From rice. Kagoshima-ken Satsumasendai-shi From the U.S. gates of the gate division system in Edo era in Bunsenin- cho Umuta. Tokushima - ken Anan - shi Distribution in the Nakagawa - cho area.