California
Snakes in Merced County
18 species have been documented here, 2 of them venomous.
Venomous snakes in Merced 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 Merced County

Gopher Snake
Pituophis catenifer
Harmless

Common Garter Snake
Thamnophis sirtalis
Harmless

Western Rattlesnake
Crotalus oreganus
Venomous

Giant Garter Snake
Thamnophis gigas
Harmless

California King Snake
Lampropeltis californiae
Harmless

Eastern Kingsnake
Lampropeltis getula
Harmless

Aquatic Garter Snake
Thamnophis atratus
Harmless

North American Racer
Coluber constrictor
Harmless

Prairie Rattlesnake
Crotalus viridis
Venomous

Ring-necked Snake
Diadophis punctatus
Harmless

Common Sharp-tailed Snake
Contia tenuis
Harmless

Sierra Garter Snake
Thamnophis couchii
Harmless

Western Terrestrial Garter Snake
Thamnophis elegans
Harmless

Common Coachwhip
Masticophis flagellum
Harmless

Glossy Snake
Arizona elegans
Harmless

Western Glossy Snake
Arizona occidentalis
Harmless

Tantilla selmae
Harmless
No photo
Mexican Whip Snake
Masticophis lineatus
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.