Pennsylvania
Snakes in Columbia County
11 species have been documented here, 1 of them venomous.
Venomous snakes in Columbia 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.
Every snake recorded in Columbia County

Common Garter Snake
Thamnophis sirtalis
Harmless

Ring-necked Snake
Diadophis punctatus
Harmless

Eastern Milksnake
Lampropeltis triangulum
Harmless

Common Watersnake
Nerodia sipedon
Harmless

DeKay's Brownsnake
Storeria dekayi
Harmless

Timber Rattlesnake
Crotalus horridus
Venomous

North American Racer
Coluber constrictor
Harmless

Eastern Hognose Snake
Heterodon platirhinos
Harmless

Gray Ratsnake
Pantherophis spiloides
Harmless

Smooth Greensnake
Opheodrys vernalis
Harmless

Red-bellied Snake
Storeria occipitomaculata
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Columbia County: FAQ
- Are there venomous snakes in Columbia County, Pennsylvania?
- Yes. 1 venomous snake species has verified records in Columbia County, Pennsylvania, including Timber Rattlesnake. Most snakes in Columbia County, Pennsylvania, however, are harmless.
- How many snake species live in Columbia County, Pennsylvania?
- 11 snake species have verified records in Columbia County, Pennsylvania, of which 1 is venomous.
- What is the most commonly seen snake in Columbia County, Pennsylvania?
- The Common Garter Snake is the most frequently reported snake in Columbia County, Pennsylvania, based on verified wildlife observations.
- What should I do if I see a venomous snake in Columbia 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.