Pennsylvania
Snakes in Lycoming County
16 species have been documented here, 2 of them venomous.
Venomous snakes in Lycoming 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 Lycoming County

Common Garter Snake
Thamnophis sirtalis
Harmless

Timber Rattlesnake
Crotalus horridus
Venomous

Common Watersnake
Nerodia sipedon
Harmless

Ring-necked Snake
Diadophis punctatus
Harmless

Eastern Milksnake
Lampropeltis triangulum
Harmless

Red-bellied Snake
Storeria occipitomaculata
Harmless

Gray Ratsnake
Pantherophis spiloides
Harmless

Smooth Greensnake
Opheodrys vernalis
Harmless

Eastern Ratsnake
Pantherophis alleghaniensis
Harmless

DeKay's Brownsnake
Storeria dekayi
Harmless

Eastern Hognose Snake
Heterodon platirhinos
Harmless

Common Ribbon Snake
Thamnophis saurita
Harmless

Western Ratsnake
Pantherophis obsoletus
Harmless

Eastern Copperhead
Agkistrodon contortrix
Venomous

Queensnake
Regina septemvittata
Harmless

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