South Dakota
Snakes in Gregory County
6 species have been documented here, 1 of them venomous.
Venomous snakes in Gregory 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 Gregory County
Prairie Rattlesnake
Crotalus viridis
Venomous
Plains Garter Snake
Thamnophis radix
Harmless
Ring-necked Snake
Diadophis punctatus
Harmless
Gopher Snake
Pituophis catenifer
Harmless
North American Racer
Coluber constrictor
Harmless
Common Garter Snake
Thamnophis sirtalis
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Gregory County: FAQ
- Are there venomous snakes in Gregory County, South Dakota?
- Yes. 1 venomous snake species has verified records in Gregory County, South Dakota, including Prairie Rattlesnake. Most snakes in Gregory County, South Dakota, however, are harmless.
- How many snake species live in Gregory County, South Dakota?
- 6 snake species have verified records in Gregory County, South Dakota, of which 1 is venomous.
- What is the most commonly seen snake in Gregory County, South Dakota?
- The Prairie Rattlesnake is the most frequently reported snake in Gregory County, South Dakota, based on verified wildlife observations.
- What should I do if I see a venomous snake in Gregory 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.