New York
Snakes in Rockland County
13 species have been documented here, 2 of them venomous.
Venomous snakes in Rockland County
Full guide & what to do if bitten →
Timber RattlesnakeCrotalus horridusVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Eastern CopperheadAgkistrodon contortrixVenomousHeavy body, triangular head, vertical pupils, and a heat-sensing pit between each eye and nostril.
Every snake recorded in Rockland County

Common Garter Snake
Thamnophis sirtalis
Harmless

Common Watersnake
Nerodia sipedon
Harmless

Eastern Ratsnake
Pantherophis alleghaniensis
Harmless

Timber Rattlesnake
Crotalus horridus
Venomous

North American Racer
Coluber constrictor
Harmless

DeKay's Brownsnake
Storeria dekayi
Harmless

Eastern Milksnake
Lampropeltis triangulum
Harmless

Eastern Copperhead
Agkistrodon contortrix
Venomous

Ring-necked Snake
Diadophis punctatus
Harmless

Red-bellied Snake
Storeria occipitomaculata
Harmless

Eastern Hognose Snake
Heterodon platirhinos
Harmless

Common Wormsnake
Carphophis amoenus
Harmless

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