Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
SNOWDEN
As described in historical dictionaries
Patronymica Britannica (1860)
SNOWDON. SNOWDEN. This rather common surname is not likely to have been derived from the famous AVelsh mountain. It is probably the name of some English locality.
Surname type: Location or geographical feature
Origin: English
Region of origin: British Isles
Country of origin: England
Religion of origin: Christian
Language of origin: English