South Dakota
Snakes in Codington County
4 species have been documented here, and none are venomous.
Every snake recorded in Codington County
Plains Garter Snake
Thamnophis radix
Harmless
Red-bellied Snake
Storeria occipitomaculata
Harmless
Smooth Greensnake
Opheodrys vernalis
Harmless
Plains Hognose Snake
Heterodon nasicus
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.