Idaho
Snakes in Teton County
3 species have been documented here, 1 of them venomous.
Venomous snakes in Teton 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 Teton County
Western Terrestrial Garter Snake
Thamnophis elegans
Harmless
Common Garter Snake
Thamnophis sirtalis
Harmless
Western Rattlesnake
Crotalus oreganus
Venomous
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Teton County: FAQ
- Are there venomous snakes in Teton County, Idaho?
- Yes. 1 venomous snake species has verified records in Teton County, Idaho, including Western Rattlesnake. Most snakes in Teton County, Idaho, however, are harmless.
- How many snake species live in Teton County, Idaho?
- 3 snake species have verified records in Teton County, Idaho, of which 1 is venomous.
- What is the most commonly seen snake in Teton County, Idaho?
- The Western Terrestrial Garter Snake is the most frequently reported snake in Teton County, Idaho, based on verified wildlife observations.
- What should I do if I see a venomous snake in Teton County, Idaho?
- 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.