Washington
Snakes in Walla Walla County
12 species have been documented here, 2 of them venomous.
Venomous snakes in Walla Walla County
Full guide & what to do if bitten →
Western RattlesnakeCrotalus oreganusVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Prairie RattlesnakeCrotalus viridisVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Every snake recorded in Walla Walla County
Gopher Snake
Pituophis catenifer
Harmless
Western Terrestrial Garter Snake
Thamnophis elegans
Harmless
Western Rattlesnake
Crotalus oreganus
Venomous
Common Garter Snake
Thamnophis sirtalis
Harmless
North American Racer
Coluber constrictor
Harmless
Northern Rubber Boa
Charina bottae
Harmless
Pine Snake
Pituophis melanoleucus
Harmless
Prairie Rattlesnake
Crotalus viridis
Venomous
Striped Whipsnake
Masticophis taeniatus
Harmless
Sinaloan Nightsnake
Hypsiglena torquata
Harmless
No photo
Mexican Whip Snake
Masticophis lineatus
Harmless
Northwestern Garter Snake
Thamnophis ordinoides
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.