North Dakota
Snakes in Sioux County
2 species have been documented here, 1 of them venomous.
Venomous snakes in Sioux 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 Sioux County
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Sioux County: FAQ
- Are there venomous snakes in Sioux County, North Dakota?
- Yes. 1 venomous snake species has verified records in Sioux County, North Dakota, including Prairie Rattlesnake. Most snakes in Sioux County, North Dakota, however, are harmless.
- How many snake species live in Sioux County, North Dakota?
- 2 snake species have verified records in Sioux County, North Dakota, of which 1 is venomous.
- What is the most commonly seen snake in Sioux County, North Dakota?
- The Gopher Snake is the most frequently reported snake in Sioux County, North Dakota, based on verified wildlife observations.
- What should I do if I see a venomous snake in Sioux County, North 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.