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