Snakes in San Juan County

• 
  Prairie Rattlesnake

  Crotalus viridis

  ▲ Venomous

  Heavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.

• 
  Western Rattlesnake

  Crotalus oreganus

  ▲ Venomous

  Heavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.

Every snake recorded in San Juan County

Gopher Snake

Pituophis catenifer

Harmless

Western Terrestrial Garter Snake

Thamnophis elegans

Harmless

Prairie Rattlesnake

Crotalus viridis

▲ Venomous

Western Rattlesnake

Crotalus oreganus

▲ Venomous

Striped Whipsnake

Masticophis taeniatus

Harmless

Glossy Snake

Arizona elegans

Harmless

California King Snake

Lampropeltis californiae

Harmless

Pine Snake

Pituophis melanoleucus

Harmless

Black-necked Garter Snake

Thamnophis cyrtopsis

Harmless

Desert Nightsnake

Hypsiglena chlorophaea

Harmless

Eastern Kingsnake

Lampropeltis getula

Harmless

Western Milksnake

Lampropeltis gentilis

Harmless

Compiled from verified GBIF & iNaturalist observations. Informational only.

Snakes in San Juan County: FAQ

Are there venomous snakes in San Juan County, Utah?

Yes. 2 venomous snake species have verified records in San Juan County, Utah, including Prairie Rattlesnake, Western Rattlesnake. Most snakes in San Juan County, Utah, however, are harmless.

How many snake species live in San Juan County, Utah?

10+ snake species have verified records in San Juan County, Utah, of which 2 are venomous.

What is the most commonly seen snake in San Juan County, Utah?

The Gopher Snake is the most frequently reported snake in San Juan County, Utah, based on verified wildlife observations.

What should I do if I see a venomous snake in San Juan County, Utah?

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.

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