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

DeKay's Brownsnake
Storeria dekayi
Harmless

Common Watersnake
Nerodia sipedon
Harmless

Eastern Foxsnake
Pantherophis vulpinus
Harmless

Plains Garter Snake
Thamnophis radix
Harmless

Smooth Greensnake
Opheodrys vernalis
Harmless

Common Garter Snake
Thamnophis sirtalis
Harmless

Eastern Milksnake
Lampropeltis triangulum
Harmless

Kirtland's Snake
Clonophis kirtlandii
Harmless

Red-bellied Snake
Storeria occipitomaculata
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in McLean County: FAQ
- Are there venomous snakes in McLean County, Illinois?
- No venomous snakes have verified records in McLean County, Illinois. Every snake recorded here is harmless to humans, though any snake may bite defensively if handled.
- How many snake species live in McLean County, Illinois?
- 9 snake species have verified records in McLean County, Illinois.
- What is the most commonly seen snake in McLean County, Illinois?
- The DeKay's Brownsnake is the most frequently reported snake in McLean County, Illinois, based on verified wildlife observations.