Snakes in Jefferson County

• 
  Northern Cottonmouth

  Agkistrodon piscivorus

  ▲ Venomous

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

• 
  Eastern Copperhead

  Agkistrodon contortrix

  ▲ Venomous

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

• 
  Texas Coralsnake

  Micrurus tener

  ▲ Venomous

  Rings of red, yellow, and black where red touches yellow; small rounded head and round pupils.

• 
  Pygmy Rattlesnake

  Sistrurus miliarius

  ▲ Venomous

  Stout, dark-blotched body, nine large scales on the crown, and a small rattle.

Every snake recorded in Jefferson County

Western Ribbon Snake

Thamnophis proximus

Harmless

Mississippi Green Watersnake

Nerodia cyclopion

Harmless

Banded Watersnake

Nerodia fasciata

Harmless

Northern Cottonmouth

Agkistrodon piscivorus

▲ Venomous

Diamondback Watersnake

Nerodia rhombifer

Harmless

DeKay's Brownsnake

Storeria dekayi

Harmless

Saltmarsh Snake

Nerodia clarkii

Harmless

Plain-bellied Watersnake

Nerodia erythrogaster

Harmless

Western Ratsnake

Pantherophis obsoletus

Harmless

Speckled Kingsnake

Lampropeltis holbrooki

Harmless

Eastern Copperhead

Agkistrodon contortrix

▲ Venomous

Glossy Swampsnake

Liodytes rigida

Harmless

Rough Earthsnake

Virginia striatula

Harmless

North American Racer

Coluber constrictor

Harmless

Texas Coralsnake

Micrurus tener

▲ Venomous

Eastern Kingsnake

Lampropeltis getula

Harmless

Western Milksnake

Lampropeltis gentilis

Harmless

Pygmy Rattlesnake

Sistrurus miliarius

▲ Venomous

Graham's Crawfish Snake

Regina grahamii

Harmless

Rough Greensnake

Opheodrys aestivus

Harmless

Eastern Hognose Snake

Heterodon platirhinos

Harmless

Mudsnake

Farancia abacura

Harmless

Compiled from verified GBIF & iNaturalist observations. Informational only.

Snakes in Jefferson County: FAQ

Are there venomous snakes in Jefferson County, Texas?

Yes. 4 venomous snake species have verified records in Jefferson County, Texas, including Northern Cottonmouth, Eastern Copperhead, Texas Coralsnake, Pygmy Rattlesnake. Most snakes in Jefferson County, Texas, however, are harmless.

How many snake species live in Jefferson County, Texas?

20+ snake species have verified records in Jefferson County, Texas, of which 4 are venomous.

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

The Western Ribbon Snake is the most frequently reported snake in Jefferson County, Texas, based on verified wildlife observations.

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

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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