Snakes in South Dakota

At a glance

11 of the 63 snakes on Learn2ID live in South Dakota, part of the Midwest. One is venomous: Prairie Rattlesnake. 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 garter & ribbon snakes: 2 of the 11. 2 look-alike pairs here involve a venomous snake — see “Commonly confused” below.