California
Snakes in Sierra County
10 species have been documented here, 1 of them venomous.
Venomous snakes in Sierra 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.
Every snake recorded in Sierra County
Western Terrestrial Garter Snake
Thamnophis elegans
Harmless
Sierra Garter Snake
Thamnophis couchii
Harmless
Common Garter Snake
Thamnophis sirtalis
Harmless
Northern Rubber Boa
Charina bottae
Harmless
Gopher Snake
Pituophis catenifer
Harmless
Western Rattlesnake
Crotalus oreganus
Venomous
North American Racer
Coluber constrictor
Harmless
Common Sharp-tailed Snake
Contia tenuis
Harmless
California Mountain Kingsnake
Lampropeltis zonata
Harmless
Ring-necked Snake
Diadophis punctatus
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Sierra County: FAQ
- Are there venomous snakes in Sierra County, California?
- Yes. 1 venomous snake species has verified records in Sierra County, California, including Western Rattlesnake. Most snakes in Sierra County, California, however, are harmless.
- How many snake species live in Sierra County, California?
- 10 snake species have verified records in Sierra County, California, of which 1 is venomous.
- What is the most commonly seen snake in Sierra County, California?
- The Western Terrestrial Garter Snake is the most frequently reported snake in Sierra County, California, based on verified wildlife observations.
- What should I do if I see a venomous snake in Sierra County, California?
- Keep your distance and do not try to catch or kill it. Most bites happen when people handle or corner a snake. If someone is bitten, contact local emergency services or poison control immediately.