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