Illinois
Snakes in Whiteside County
8 species have been documented here, and none are venomous.
Every snake recorded in Whiteside County

Common Watersnake
Nerodia sipedon
Harmless

Common Garter Snake
Thamnophis sirtalis
Harmless

Eastern Foxsnake
Pantherophis vulpinus
Harmless

DeKay's Brownsnake
Storeria dekayi
Harmless

Eastern Hognose Snake
Heterodon platirhinos
Harmless

Plains Garter Snake
Thamnophis radix
Harmless

North American Racer
Coluber constrictor
Harmless

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