Pennsylvania
Snakes in Washington County
11 species have been documented here, 1 of them venomous.
Venomous snakes in Washington County
Full guide & what to do if bitten →
Eastern CopperheadAgkistrodon contortrixVenomousHeavy body, triangular head, vertical pupils, and a heat-sensing pit between each eye and nostril.
Every snake recorded in Washington County
Common Garter Snake
Thamnophis sirtalis
Harmless
Queensnake
Regina septemvittata
Harmless
Gray Ratsnake
Pantherophis spiloides
Harmless
Common Watersnake
Nerodia sipedon
Harmless
Ring-necked Snake
Diadophis punctatus
Harmless
Smooth Greensnake
Opheodrys vernalis
Harmless
North American Racer
Coluber constrictor
Harmless
Eastern Milksnake
Lampropeltis triangulum
Harmless
Western Ratsnake
Pantherophis obsoletus
Harmless
Eastern Copperhead
Agkistrodon contortrix
Venomous
DeKay's Brownsnake
Storeria dekayi
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Washington County: FAQ
- Are there venomous snakes in Washington County, Pennsylvania?
- Yes. 1 venomous snake species has verified records in Washington County, Pennsylvania, including Eastern Copperhead. Most snakes in Washington County, Pennsylvania, however, are harmless.
- How many snake species live in Washington County, Pennsylvania?
- 11 snake species have verified records in Washington County, Pennsylvania, of which 1 is venomous.
- What is the most commonly seen snake in Washington County, Pennsylvania?
- The Common Garter Snake is the most frequently reported snake in Washington County, Pennsylvania, based on verified wildlife observations.
- What should I do if I see a venomous snake in Washington 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.