South Dakota
Snakes in Union County
8 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
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Union County: FAQ
- Are there venomous snakes in Union County, South Dakota?
- No venomous snakes have verified records in Union County, South Dakota. Every snake recorded here is harmless to humans, though any snake may bite defensively if handled.
- How many snake species live in Union County, South Dakota?
- 8 snake species have verified records in Union County, South Dakota.
- What is the most commonly seen snake in Union County, South Dakota?
- The Plains Garter Snake is the most frequently reported snake in Union County, South Dakota, based on verified wildlife observations.