California
Snakes in Yolo County
20 species have been documented here, 2 of them venomous.
Venomous snakes in Yolo 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 Yolo County
Gopher Snake
Pituophis catenifer
Harmless
Common Garter Snake
Thamnophis sirtalis
Harmless
California King Snake
Lampropeltis californiae
Harmless
Western Rattlesnake
Crotalus oreganus
Venomous
North American Racer
Coluber constrictor
Harmless
Common Sharp-tailed Snake
Contia tenuis
Harmless
Giant Garter Snake
Thamnophis gigas
Harmless
Eastern Kingsnake
Lampropeltis getula
Harmless
Striped Racer
Masticophis lateralis
Harmless
No photo
Mexican Whip Snake
Masticophis lineatus
Harmless
Prairie Rattlesnake
Crotalus viridis
Venomous
Aquatic Garter Snake
Thamnophis atratus
Harmless
Ring-necked Snake
Diadophis punctatus
Harmless
Boa Constrictor
Boa constrictor
Harmless
Mexican West Coast Boa Constrictor
Boa sigma
Harmless
Coast Night Snake
Hypsiglena ochrorhynchus
Harmless
Western Terrestrial Garter Snake
Thamnophis elegans
Harmless
Banded Watersnake
Nerodia fasciata
Harmless
Pine Snake
Pituophis melanoleucus
Harmless
Sonora straminea
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.