Etymology and distribution of 粂沢.

Kumezawa 【粂沢】^{レベル2
About 30}  The Japanese surnames etymology dictionary.

Hyougo-ken Koube-shi . Thing . A variant of 昆布 . In Hyougo - ken Koube - shi telling that it was renamed at the time of the Meiji New surname from the Konbu family name that was called during the Edo period. 昆布 Konbu reference.