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