South Dakota
Snakes in Union County
10 species have been documented here, and none are venomous.
Every snake recorded in Union County
Plains Garter Snake
Thamnophis radix
Harmless
Common Garter Snake
Thamnophis sirtalis
Harmless
Ring-necked Snake
Diadophis punctatus
Harmless
Western Foxsnake
Pantherophis ramspotti
Harmless
North American Racer
Coluber constrictor
Harmless
Eastern Foxsnake
Pantherophis vulpinus
Harmless
Eastern Hognose Snake
Heterodon platirhinos
Harmless
Lined Snake
Tropidoclonion lineatum
Harmless
Gopher Snake
Pituophis catenifer
Harmless
Red-bellied Snake
Storeria occipitomaculata
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.