New Jersey
Snakes in Bergen County
13 species have been documented here, 2 of them venomous.
Venomous snakes in Bergen 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 Bergen County

Common Garter Snake
Thamnophis sirtalis
Harmless

Common Watersnake
Nerodia sipedon
Harmless

Eastern Ratsnake
Pantherophis alleghaniensis
Harmless

Eastern Copperhead
Agkistrodon contortrix
Venomous

DeKay's Brownsnake
Storeria dekayi
Harmless

Timber Rattlesnake
Crotalus horridus
Venomous

Eastern Milksnake
Lampropeltis triangulum
Harmless

Ring-necked Snake
Diadophis punctatus
Harmless

Common Wormsnake
Carphophis amoenus
Harmless

North American Racer
Coluber constrictor
Harmless

Eastern Hognose Snake
Heterodon platirhinos
Harmless

Red-bellied Snake
Storeria occipitomaculata
Harmless

Common Ribbon Snake
Thamnophis saurita
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Bergen County: FAQ
- Are there venomous snakes in Bergen County, New Jersey?
- Yes. 2 venomous snake species have verified records in Bergen County, New Jersey, including Eastern Copperhead, Timber Rattlesnake. Most snakes in Bergen County, New Jersey, however, are harmless.
- How many snake species live in Bergen County, New Jersey?
- 10+ snake species have verified records in Bergen County, New Jersey, of which 2 are venomous.
- What is the most commonly seen snake in Bergen County, New Jersey?
- The Common Garter Snake is the most frequently reported snake in Bergen County, New Jersey, based on verified wildlife observations.
- What should I do if I see a venomous snake in Bergen 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.