New York
Snakes in Rockland County
14 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

Western Ratsnake
Pantherophis obsoletus
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.