Snakes in New Castle County

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  Eastern Copperhead

  Agkistrodon contortrix

  ▲ Venomous

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

Every snake recorded in New Castle County

Common Garter Snake

Thamnophis sirtalis

Harmless

Common Watersnake

Nerodia sipedon

Harmless

DeKay's Brownsnake

Storeria dekayi

Harmless

Eastern Ratsnake

Pantherophis alleghaniensis

Harmless

North American Racer

Coluber constrictor

Harmless

Ring-necked Snake

Diadophis punctatus

Harmless

Eastern Milksnake

Lampropeltis triangulum

Harmless

Common Wormsnake

Carphophis amoenus

Harmless

Queensnake

Regina septemvittata

Harmless

Western Ratsnake

Pantherophis obsoletus

Harmless

Eastern Copperhead

Agkistrodon contortrix

▲ Venomous

Rough Greensnake

Opheodrys aestivus

Harmless

Eastern Hognose Snake

Heterodon platirhinos

Harmless

Smooth Earthsnake

Virginia valeriae

Harmless

Eastern Kingsnake

Lampropeltis getula

Harmless

Compiled from verified GBIF & iNaturalist observations. Informational only.

Snakes in New Castle County: FAQ

Are there venomous snakes in New Castle County, Delaware?

Yes. 1 venomous snake species has verified records in New Castle County, Delaware, including Eastern Copperhead. Most snakes in New Castle County, Delaware, however, are harmless.

How many snake species live in New Castle County, Delaware?

10+ snake species have verified records in New Castle County, Delaware, of which 1 is venomous.

What is the most commonly seen snake in New Castle County, Delaware?

The Common Garter Snake is the most frequently reported snake in New Castle County, Delaware, based on verified wildlife observations.

What should I do if I see a venomous snake in New Castle County, Delaware?

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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