South Dakota
Snakes in Butte County
4 species have been documented here, 1 of them venomous.
Venomous snakes in Butte County
Full guide & what to do if bitten →
Prairie RattlesnakeCrotalus viridisVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Every snake recorded in Butte County
Western Terrestrial Garter Snake
Thamnophis elegans
Harmless
Plains Garter Snake
Thamnophis radix
Harmless
Prairie Rattlesnake
Crotalus viridis
Venomous
Gopher Snake
Pituophis catenifer
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Butte County: FAQ
- Are there venomous snakes in Butte County, South Dakota?
- Yes. 1 venomous snake species has verified records in Butte County, South Dakota, including Prairie Rattlesnake. Most snakes in Butte County, South Dakota, however, are harmless.
- How many snake species live in Butte County, South Dakota?
- 4 snake species have verified records in Butte County, South Dakota, of which 1 is venomous.
- What is the most commonly seen snake in Butte County, South Dakota?
- The Western Terrestrial Garter Snake is the most frequently reported snake in Butte County, South Dakota, based on verified wildlife observations.
- What should I do if I see a venomous snake in Butte County, South Dakota?
- 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.