Etymology and distribution of 沼上.

Numakami 【沼上】^{レベル4
About 1,300}  The Japanese surnames etymology dictionary.

Shizuoka-ken . A variant of 真島 .

Numaue 【沼上】^{レベル4
About 1,300}  The Japanese surnames etymology dictionary.

Toukyou-to , Aichi-ken , Yamaguchi-ken .

① variant of 馬島 . Toukyou-to Chiyoda-ku Chiyoda was the Edo period from the Edo period of the Government Agency, Ehime-ken Matsuyama-shi Marunouchi was in the Edo era in the Iyo Matsuyama clan of the clan office.

② 真島 's variant.

Numagami 【沼上】^{レベル4
About 1,300}  The Japanese surnames etymology dictionary.

Saga-ken Karatsu-shi . Saga-ken Karatsu-shi Distributed in Hamadama-cho Higashiyamada. There is 清水 surname in the same place. 清水 Shimizu reference.