Snakes in Jefferson County

• 
  Western Diamond-backed Rattlesnake

  Crotalus atrox

  ▲ Venomous

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

• 
  Northern Cottonmouth

  Agkistrodon piscivorus

  ▲ Venomous

  Heavy body, triangular head, vertical pupils, and a heat-sensing pit between each eye and nostril.

• 
  Timber Rattlesnake

  Crotalus horridus

  ▲ Venomous

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

Every snake recorded in Jefferson County

Western Ratsnake

Pantherophis obsoletus

Harmless

Western Ribbon Snake

Thamnophis proximus

Harmless

DeKay's Brownsnake

Storeria dekayi

Harmless

Western Diamond-backed Rattlesnake

Crotalus atrox

▲ Venomous

Plain-bellied Watersnake

Nerodia erythrogaster

Harmless

Northern Cottonmouth

Agkistrodon piscivorus

▲ Venomous

Common Coachwhip

Masticophis flagellum

Harmless

Diamondback Watersnake

Nerodia rhombifer

Harmless

Ground Snake

Sonora semiannulata

Harmless

North American Racer

Coluber constrictor

Harmless

Rough Greensnake

Opheodrys aestivus

Harmless

Timber Rattlesnake

Crotalus horridus

▲ Venomous

Compiled from verified GBIF & iNaturalist observations. Informational only.

Snakes in Jefferson County: FAQ

Are there venomous snakes in Jefferson County, Oklahoma?

Yes. 3 venomous snake species have verified records in Jefferson County, Oklahoma, including Western Diamond-backed Rattlesnake, Northern Cottonmouth, Timber Rattlesnake. Most snakes in Jefferson County, Oklahoma, however, are harmless.

How many snake species live in Jefferson County, Oklahoma?

10+ snake species have verified records in Jefferson County, Oklahoma, of which 3 are venomous.

What is the most commonly seen snake in Jefferson County, Oklahoma?

The Western Ratsnake is the most frequently reported snake in Jefferson County, Oklahoma, based on verified wildlife observations.

What should I do if I see a venomous snake in Jefferson County, Oklahoma?

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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