Oklahoma
Snakes in Haskell County
8 species have been documented here, 2 of them venomous.
Venomous snakes in Haskell County
Full guide & what to do if bitten →
Northern CottonmouthAgkistrodon piscivorusVenomousHeavy body, triangular head, vertical pupils, and a heat-sensing pit between each eye and nostril.
Timber RattlesnakeCrotalus horridusVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Every snake recorded in Haskell County

Western Ratsnake
Pantherophis obsoletus
Harmless

Northern Cottonmouth
Agkistrodon piscivorus
Venomous

Ring-necked Snake
Diadophis punctatus
Harmless

Rough Greensnake
Opheodrys aestivus
Harmless

Common Coachwhip
Masticophis flagellum
Harmless

Timber Rattlesnake
Crotalus horridus
Venomous

Western Ribbon Snake
Thamnophis proximus
Harmless

Eastern Hognose Snake
Heterodon platirhinos
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Haskell County: FAQ
- Are there venomous snakes in Haskell County, Oklahoma?
- Yes. 2 venomous snake species have verified records in Haskell County, Oklahoma, including Northern Cottonmouth, Timber Rattlesnake. Most snakes in Haskell County, Oklahoma, however, are harmless.
- How many snake species live in Haskell County, Oklahoma?
- 8 snake species have verified records in Haskell County, Oklahoma, of which 2 are venomous.
- What is the most commonly seen snake in Haskell County, Oklahoma?
- The Western Ratsnake is the most frequently reported snake in Haskell County, Oklahoma, based on verified wildlife observations.
- What should I do if I see a venomous snake in Haskell County, Oklahoma?
- 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.