Colorado
Snakes in Broomfield County
6 species have been documented here, 1 of them venomous.
Venomous snakes in Broomfield 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 Broomfield County

Gopher Snake
Pituophis catenifer
Harmless

Plains Garter Snake
Thamnophis radix
Harmless

North American Racer
Coluber constrictor
Harmless

Western Terrestrial Garter Snake
Thamnophis elegans
Harmless

Prairie Rattlesnake
Crotalus viridis
Venomous

Western Milksnake
Lampropeltis gentilis
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Broomfield County: FAQ
- Are there venomous snakes in Broomfield County, Colorado?
- Yes. 1 venomous snake species has verified records in Broomfield County, Colorado, including Prairie Rattlesnake. Most snakes in Broomfield County, Colorado, however, are harmless.
- How many snake species live in Broomfield County, Colorado?
- 6 snake species have verified records in Broomfield County, Colorado, of which 1 is venomous.
- What is the most commonly seen snake in Broomfield County, Colorado?
- The Gopher Snake is the most frequently reported snake in Broomfield County, Colorado, based on verified wildlife observations.
- What should I do if I see a venomous snake in Broomfield 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.