Snakes in Westmoreland County

• 
  Eastern Copperhead

  Agkistrodon contortrix

  ▲ 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 Westmoreland County

Common Garter Snake

Thamnophis sirtalis

Harmless

Queensnake

Regina septemvittata

Harmless

Common Watersnake

Nerodia sipedon

Harmless

Gray Ratsnake

Pantherophis spiloides

Harmless

Ring-necked Snake

Diadophis punctatus

Harmless

DeKay's Brownsnake

Storeria dekayi

Harmless

Eastern Copperhead

Agkistrodon contortrix

▲ Venomous

Timber Rattlesnake

Crotalus horridus

▲ Venomous

Eastern Milksnake

Lampropeltis triangulum

Harmless

Red-bellied Snake

Storeria occipitomaculata

Harmless

Western Ratsnake

Pantherophis obsoletus

Harmless

North American Racer

Coluber constrictor

Harmless

Smooth Greensnake

Opheodrys vernalis

Harmless

Smooth Earthsnake

Virginia valeriae

Harmless

Compiled from verified GBIF & iNaturalist observations. Informational only.

Snakes in Westmoreland County: FAQ

Are there venomous snakes in Westmoreland County, Pennsylvania?

Yes. 2 venomous snake species have verified records in Westmoreland County, Pennsylvania, including Eastern Copperhead, Timber Rattlesnake. Most snakes in Westmoreland County, Pennsylvania, however, are harmless.

How many snake species live in Westmoreland County, Pennsylvania?

10+ snake species have verified records in Westmoreland County, Pennsylvania, of which 2 are venomous.

What is the most commonly seen snake in Westmoreland County, Pennsylvania?

The Common Garter Snake is the most frequently reported snake in Westmoreland County, Pennsylvania, based on verified wildlife observations.

What should I do if I see a venomous snake in Westmoreland County, Pennsylvania?

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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