There are no poisonous snakes in Oregon but there is ones species of venomous snake - the northern Pacific rattlesnake.
Ringneck Snake (Diadophis punctatus) Night Snake (Hypsiglena torquata) Common Kingsnake (Lampropeltis getula) California Mountain Kingsnake (Lampropeltis zonata) Striped Whipsnake (Masticophis taeniatus) Pacific Gopher Snake (Pituophis catenifer) Western Ground Snake (Sonora semiannulata) Santa Cruz Garter Snake (Thamnophis atratus)
Ringneck Snake (Diadophis punctatus) Night Snake (Hypsiglena torquata) Common Kingsnake (Lampropeltis getula) California Mountain Kingsnake (Lampropeltis zonata) Striped Whipsnake (Masticophis taeniatus) Pacific Gopher Snake (Pituophis catenifer) Western Ground Snake (Sonora semiannulata) Santa Cruz Garter Snake (Thamnophis atratus)