California
Snakes in Siskiyou County
18 species have been documented here, 2 of them venomous.
Venomous snakes in Siskiyou 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 Siskiyou County
Western Terrestrial Garter Snake
Thamnophis elegans
Harmless
Common Garter Snake
Thamnophis sirtalis
Harmless
Sierra Garter Snake
Thamnophis couchii
Harmless
Gopher Snake
Pituophis catenifer
Harmless
Aquatic Garter Snake
Thamnophis atratus
Harmless
Western Rattlesnake
Crotalus oreganus
Venomous
North American Racer
Coluber constrictor
Harmless
Northern Rubber Boa
Charina bottae
Harmless
California Mountain Kingsnake
Lampropeltis zonata
Harmless
California King Snake
Lampropeltis californiae
Harmless
Striped Whipsnake
Masticophis taeniatus
Harmless
Ring-necked Snake
Diadophis punctatus
Harmless
Northwestern Garter Snake
Thamnophis ordinoides
Harmless
Prairie Rattlesnake
Crotalus viridis
Venomous
Common Sharp-tailed Snake
Contia tenuis
Harmless
Desert Nightsnake
Hypsiglena chlorophaea
Harmless
Eastern Kingsnake
Lampropeltis getula
Harmless
Pine Snake
Pituophis melanoleucus
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Siskiyou County: FAQ
- Are there venomous snakes in Siskiyou County, California?
- Yes. 2 venomous snake species have verified records in Siskiyou County, California, including Western Rattlesnake, Prairie Rattlesnake. Most snakes in Siskiyou County, California, however, are harmless.
- How many snake species live in Siskiyou County, California?
- 10+ snake species have verified records in Siskiyou County, California, of which 2 are venomous.
- What is the most commonly seen snake in Siskiyou County, California?
- The Western Terrestrial Garter Snake is the most frequently reported snake in Siskiyou County, California, based on verified wildlife observations.
- What should I do if I see a venomous snake in Siskiyou 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.