Pennsylvania
Snakes in Philadelphia County
7 species have been documented here, and none are venomous.
Every snake recorded in Philadelphia County
Common Garter Snake
Thamnophis sirtalis
Harmless
DeKay's Brownsnake
Storeria dekayi
Harmless
Common Watersnake
Nerodia sipedon
Harmless
Eastern Ratsnake
Pantherophis alleghaniensis
Harmless
Eastern Milksnake
Lampropeltis triangulum
Harmless
Ring-necked Snake
Diadophis punctatus
Harmless
North American Racer
Coluber constrictor
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Philadelphia County: FAQ
- Are there venomous snakes in Philadelphia County, Pennsylvania?
- No venomous snakes have verified records in Philadelphia County, Pennsylvania. Every snake recorded here is harmless to humans, though any snake may bite defensively if handled.
- How many snake species live in Philadelphia County, Pennsylvania?
- 7 snake species have verified records in Philadelphia County, Pennsylvania.
- What is the most commonly seen snake in Philadelphia County, Pennsylvania?
- The Common Garter Snake is the most frequently reported snake in Philadelphia County, Pennsylvania, based on verified wildlife observations.