Snakes in Idaho

Idaho has around 12 snake species, two of which are considered venomous. The southern part of the state has most snakes, including the venomous ones. For instance, the striped whipsnake dwells in the southwestern and south-central parts. The long-nosed snake inhabits the desert regions in Idaho’s southwestern belt.

The gopher snake is Idaho’s largest snake, measuring 170 cm.

Snakes in Idaho (ID)
RattlesnakesWestern Diamondback Rattlesnake Prairie Rattlesnake
Garter SnakesCommon Garter Snake
Western Terrestrial Garter Snake
Gopher SnakesGopher Snake
Pacific Gopher Snake
Whip SnakesStriped Whipsnake
Ground SnakesWestern Ground Snake
CharinaRubber Boa
HypsiglenaDesert Nightsnake
RhinocheilusLong-nosed Snake
DiadophisRing-necked Snake
ColuberNorth American Racer

Snakes by Colors and Patterns

Black Snakes: North American Racer, Western Ground Snake

Snakes by Regions

Snakes in Northern Idaho: Common Garter Snake, Western Terrestrial Garter Snake

Snakes in Southern Idaho: Long-nosed Snake, Northern Pacific Rattlesnake, Prairie Rattlesnake

Quick Information

Largest Snake: Gopher Snake

Most Venomous Snakes: Prairie Rattlesnake, Western Diamondback Rattlesnake