Pennsylvania
Snakes in Butler County
17 species have been documented here, 2 of them venomous.
Venomous snakes in Butler County
Full guide & what to do if bitten →
Eastern MassasaugaSistrurus catenatusVenomousStout, dark-blotched body, nine large scales on the crown, and a small rattle.
Eastern CopperheadAgkistrodon contortrixVenomousHeavy body, triangular head, vertical pupils, and a heat-sensing pit between each eye and nostril.
Every snake recorded in Butler County
Common Garter Snake
Thamnophis sirtalis
Harmless
Common Watersnake
Nerodia sipedon
Harmless
Gray Ratsnake
Pantherophis spiloides
Harmless
DeKay's Brownsnake
Storeria dekayi
Harmless
Eastern Massasauga
Sistrurus catenatus
Venomous
Queensnake
Regina septemvittata
Harmless
Ring-necked Snake
Diadophis punctatus
Harmless
Eastern Milksnake
Lampropeltis triangulum
Harmless
North American Racer
Coluber constrictor
Harmless
Common Ribbon Snake
Thamnophis saurita
Harmless
Smooth Greensnake
Opheodrys vernalis
Harmless
Western Ratsnake
Pantherophis obsoletus
Harmless
Kirtland's Snake
Clonophis kirtlandii
Harmless
Short-headed Garter Snake
Thamnophis brachystoma
Harmless
Red-bellied Snake
Storeria occipitomaculata
Harmless
Eastern Copperhead
Agkistrodon contortrix
Venomous
Eastern Ratsnake
Pantherophis alleghaniensis
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.