New Jersey
Snakes in Warren County
10 species have been documented here, 2 of them venomous.
Venomous snakes in Warren County
Full guide & what to do if bitten →
Eastern CopperheadAgkistrodon contortrixVenomousHeavy body, triangular head, vertical pupils, and a heat-sensing pit between each eye and nostril.
Timber RattlesnakeCrotalus horridusVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Every snake recorded in Warren County
Common Watersnake
Nerodia sipedon
Harmless
Common Garter Snake
Thamnophis sirtalis
Harmless
Eastern Ratsnake
Pantherophis alleghaniensis
Harmless
Eastern Milksnake
Lampropeltis triangulum
Harmless
North American Racer
Coluber constrictor
Harmless
Ring-necked Snake
Diadophis punctatus
Harmless
Eastern Copperhead
Agkistrodon contortrix
Venomous
Common Ribbon Snake
Thamnophis saurita
Harmless
Red-bellied Snake
Storeria occipitomaculata
Harmless
Timber Rattlesnake
Crotalus horridus
Venomous
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Warren County: FAQ
- Are there venomous snakes in Warren County, New Jersey?
- Yes. 2 venomous snake species have verified records in Warren County, New Jersey, including Eastern Copperhead, Timber Rattlesnake. Most snakes in Warren County, New Jersey, however, are harmless.
- How many snake species live in Warren County, New Jersey?
- 10 snake species have verified records in Warren County, New Jersey, of which 2 are venomous.
- What is the most commonly seen snake in Warren County, New Jersey?
- The Common Watersnake is the most frequently reported snake in Warren County, New Jersey, based on verified wildlife observations.
- What should I do if I see a venomous snake in Warren County, New Jersey?
- 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.