Oklahoma
Snakes in Sequoyah County
23 species have been documented here, 5 of them venomous.
Venomous snakes in Sequoyah 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.
Eastern CopperheadAgkistrodon contortrixVenomousHeavy 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.
Western Diamond-backed RattlesnakeCrotalus atroxVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Broad-banded CopperheadAgkistrodon laticinctusVenomousHeavy body, triangular head, vertical pupils, and a heat-sensing pit between each eye and nostril.
Every snake recorded in Sequoyah County
Plain-bellied Watersnake
Nerodia erythrogaster
Harmless
Northern Cottonmouth
Agkistrodon piscivorus
Venomous
Western Ratsnake
Pantherophis obsoletus
Harmless
Common Watersnake
Nerodia sipedon
Harmless
Diamondback Watersnake
Nerodia rhombifer
Harmless
North American Racer
Coluber constrictor
Harmless
Rough Greensnake
Opheodrys aestivus
Harmless
Rough Earthsnake
Virginia striatula
Harmless
Ring-necked Snake
Diadophis punctatus
Harmless
Western Worm Snake
Carphophis vermis
Harmless
Western Ribbon Snake
Thamnophis proximus
Harmless
Speckled Kingsnake
Lampropeltis holbrooki
Harmless
DeKay's Brownsnake
Storeria dekayi
Harmless
Eastern Copperhead
Agkistrodon contortrix
Venomous
Timber Rattlesnake
Crotalus horridus
Venomous
Western Diamond-backed Rattlesnake
Crotalus atrox
Venomous
Common Coachwhip
Masticophis flagellum
Harmless
Broad-banded Copperhead
Agkistrodon laticinctus
Venomous
Eastern Kingsnake
Lampropeltis getula
Harmless
Common Garter Snake
Thamnophis sirtalis
Harmless
Eastern Milksnake
Lampropeltis triangulum
Harmless
Great Plains Ratsnake
Pantherophis emoryi
Harmless
Western Milksnake
Lampropeltis gentilis
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Sequoyah County: FAQ
- Are there venomous snakes in Sequoyah County, Oklahoma?
- Yes. 5 venomous snake species have verified records in Sequoyah County, Oklahoma, including Northern Cottonmouth, Eastern Copperhead, Timber Rattlesnake, Western Diamond-backed Rattlesnake. Most snakes in Sequoyah County, Oklahoma, however, are harmless.
- How many snake species live in Sequoyah County, Oklahoma?
- 20+ snake species have verified records in Sequoyah County, Oklahoma, of which 5 are venomous.
- What is the most commonly seen snake in Sequoyah County, Oklahoma?
- The Plain-bellied Watersnake is the most frequently reported snake in Sequoyah County, Oklahoma, based on verified wildlife observations.
- What should I do if I see a venomous snake in Sequoyah 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.