Etymology and distribution of 澄長.

Suminaga 【澄長】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Shiga-ken , Gifu-ken , Fukuoka-ken .

① Shiga-ken Maibara-shi Birth of Asahi Hikaru . A place name with a record since the Nara period. The place name also pronounced Tsukamasa.

② Originated from Nagano-ken Higashikuima-gun (formerly: Chikuma-gun). In the year 685 (Emperor Tenmu 14 years) the place name with the notation of "bunka" recorded. The place name also pronounced Tsukamasa. Okayama-ken Maniwa-shi There is a tradition in Katsuyama.