Snakes in Oklahoma

At a glance

33 of the 63 snakes on Learn2ID live in Oklahoma, part of the South Central. 8 are venomous: Broad-banded Copperhead, Eastern Copperhead, Northern Cottonmouth, Prairie Rattlesnake, Pygmy Rattlesnake, Timber Rattlesnake, Western Diamondback Rattlesnake and Western Massasauga. Common Gartersnake, Eastern Hog-nosed Snake, Ring-necked Snake, Terrestrial Gartersnake and Western Hog-nosed Snake have only a mild venom. The biggest group here is rattlesnakes: 5 of the 33. The Broad-banded Copperhead is found in only 3 states, and Oklahoma is one of them. 23 look-alike pairs here involve a venomous snake — see “Commonly confused” below.